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Finding the Fourth Proportional to 534,459,612.40, 746,631,026 and 534,459,612.40

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Solution

The fourth proportional to 534,459,612.40, 746,631,026 and 534,459,612.40 is: 746,631,026

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,459,612.40 : 746,631,026 = 534,459,612.40 : x
  2. Step 2: Convert to fraction form
    534,459,612.40/746,631,026 = 534,459,612.40/x
  3. Step 3: Cross multiply
    534,459,612.40x = 746,631,026 × 534,459,612.40
  4. Step 4: Simplify right side
    534,459,612.40x = 399,044,128,761,774,336
  5. Step 5: Solve for x
    x = 399,044,128,761,774,336/534,459,612.40
  6. Step 6: Final answer
    x = 746,631,026

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.