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Finding the Fourth Proportional to 577,368,001.70, 866,052,002.55 and 518,917,364.90

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Solution

The fourth proportional to 577,368,001.70, 866,052,002.55 and 518,917,364.90 is: 778,376,047.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,368,001.70 : 866,052,002.55 = 518,917,364.90 : x
  2. Step 2: Convert to fraction form
    577,368,001.70/866,052,002.55 = 518,917,364.90/x
  3. Step 3: Cross multiply
    577,368,001.70x = 866,052,002.55 × 518,917,364.90
  4. Step 4: Simplify right side
    577,368,001.70x = 449,409,423,029,614,016
  5. Step 5: Solve for x
    x = 449,409,423,029,614,016/577,368,001.70
  6. Step 6: Final answer
    x = 778,376,047.35

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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.