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Finding the Fourth Proportional to 562,815,207.59, 776,685,060.10 and 311,935,796.30

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Solution

The fourth proportional to 562,815,207.59, 776,685,060.10 and 311,935,796.30 is: 430,471,439.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,815,207.59 : 776,685,060.10 = 311,935,796.30 : x
  2. Step 2: Convert to fraction form
    562,815,207.59/776,685,060.10 = 311,935,796.30/x
  3. Step 3: Cross multiply
    562,815,207.59x = 776,685,060.10 × 311,935,796.30
  4. Step 4: Simplify right side
    562,815,207.59x = 242,275,872,692,723,456
  5. Step 5: Solve for x
    x = 242,275,872,692,723,456/562,815,207.59
  6. Step 6: Final answer
    x = 430,471,439.69

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.