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Finding the Fourth Proportional to 531,441,806.40, 797,162,709.60 and 497,004,429.60

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Solution

The fourth proportional to 531,441,806.40, 797,162,709.60 and 497,004,429.60 is: 745,506,644.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,441,806.40 : 797,162,709.60 = 497,004,429.60 : x
  2. Step 2: Convert to fraction form
    531,441,806.40/797,162,709.60 = 497,004,429.60/x
  3. Step 3: Cross multiply
    531,441,806.40x = 797,162,709.60 × 497,004,429.60
  4. Step 4: Simplify right side
    531,441,806.40x = 396,193,397,783,138,496
  5. Step 5: Solve for x
    x = 396,193,397,783,138,496/531,441,806.40
  6. Step 6: Final answer
    x = 745,506,644.40

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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.