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Finding the Fourth Proportional to 651,703.20, 977,554.80 and 629,930.40

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Solution

The fourth proportional to 651,703.20, 977,554.80 and 629,930.40 is: 944,895.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,703.20 : 977,554.80 = 629,930.40 : x
  2. Step 2: Convert to fraction form
    651,703.20/977,554.80 = 629,930.40/x
  3. Step 3: Cross multiply
    651,703.20x = 977,554.80 × 629,930.40
  4. Step 4: Simplify right side
    651,703.20x = 615,791,486,185.92
  5. Step 5: Solve for x
    x = 615,791,486,185.92/651,703.20
  6. Step 6: Final answer
    x = 944,895.60

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.