Home / 945,383.63-1,304,647.16-515,679.10

Finding the Fourth Proportional to 945,383.63, 1,304,647.16 and 515,679.10

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Solution

The fourth proportional to 945,383.63, 1,304,647.16 and 515,679.10 is: 711,646.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,383.63 : 1,304,647.16 = 515,679.10 : x
  2. Step 2: Convert to fraction form
    945,383.63/1,304,647.16 = 515,679.10/x
  3. Step 3: Cross multiply
    945,383.63x = 1,304,647.16 × 515,679.10
  4. Step 4: Simplify right side
    945,383.63x = 672,779,267,446.34
  5. Step 5: Solve for x
    x = 672,779,267,446.34/945,383.63
  6. Step 6: Final answer
    x = 711,646.84

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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.