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Finding the Fourth Proportional to 531,569.60, 797,354.40 and 266,148.80

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Solution

The fourth proportional to 531,569.60, 797,354.40 and 266,148.80 is: 399,223.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,569.60 : 797,354.40 = 266,148.80 : x
  2. Step 2: Convert to fraction form
    531,569.60/797,354.40 = 266,148.80/x
  3. Step 3: Cross multiply
    531,569.60x = 797,354.40 × 266,148.80
  4. Step 4: Simplify right side
    531,569.60x = 212,214,916,734.72
  5. Step 5: Solve for x
    x = 212,214,916,734.72/531,569.60
  6. Step 6: Final answer
    x = 399,223.20

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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.