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Finding the Fourth Proportional to 623,892.68, 936,254.10 and 339,654.92

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Solution

The fourth proportional to 623,892.68, 936,254.10 and 339,654.92 is: 509,708.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,892.68 : 936,254.10 = 339,654.92 : x
  2. Step 2: Convert to fraction form
    623,892.68/936,254.10 = 339,654.92/x
  3. Step 3: Cross multiply
    623,892.68x = 936,254.10 × 339,654.92
  4. Step 4: Simplify right side
    623,892.68x = 318,003,311,435.17
  5. Step 5: Solve for x
    x = 318,003,311,435.17/623,892.68
  6. Step 6: Final answer
    x = 509,708.35

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Double scale
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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.