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Finding the Fourth Proportional to 1,304,711,241.31, 1,800,501,779.58 and 718,000,377.31

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Solution

The fourth proportional to 1,304,711,241.31, 1,800,501,779.58 and 718,000,377.31 is: 990,840,667.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,304,711,241.31 : 1,800,501,779.58 = 718,000,377.31 : x
  2. Step 2: Convert to fraction form
    1,304,711,241.31/1,800,501,779.58 = 718,000,377.31/x
  3. Step 3: Cross multiply
    1,304,711,241.31x = 1,800,501,779.58 × 718,000,377.31
  4. Step 4: Simplify right side
    1,304,711,241.31x = 1,292,760,957,076,763,904
  5. Step 5: Solve for x
    x = 1,292,760,957,076,763,904/1,304,711,241.31
  6. Step 6: Final answer
    x = 990,840,667.38

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.