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Finding the Fourth Proportional to 406,944,471.15, 570,487,534.65 and 406,944,471.15

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Solution

The fourth proportional to 406,944,471.15, 570,487,534.65 and 406,944,471.15 is: 570,487,534.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,944,471.15 : 570,487,534.65 = 406,944,471.15 : x
  2. Step 2: Convert to fraction form
    406,944,471.15/570,487,534.65 = 406,944,471.15/x
  3. Step 3: Cross multiply
    406,944,471.15x = 570,487,534.65 × 406,944,471.15
  4. Step 4: Simplify right side
    406,944,471.15x = 232,156,748,085,811,520
  5. Step 5: Solve for x
    x = 232,156,748,085,811,520/406,944,471.15
  6. Step 6: Final answer
    x = 570,487,534.65

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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.