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Finding the Fourth Proportional to 692,773,141.77, 956,019,324.65 and 375,225,487.56

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Solution

The fourth proportional to 692,773,141.77, 956,019,324.65 and 375,225,487.56 is: 517,807,050.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,773,141.77 : 956,019,324.65 = 375,225,487.56 : x
  2. Step 2: Convert to fraction form
    692,773,141.77/956,019,324.65 = 375,225,487.56/x
  3. Step 3: Cross multiply
    692,773,141.77x = 956,019,324.65 × 375,225,487.56
  4. Step 4: Simplify right side
    692,773,141.77x = 358,722,817,206,702,016
  5. Step 5: Solve for x
    x = 358,722,817,206,702,016/692,773,141.77
  6. Step 6: Final answer
    x = 517,807,050.50

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Why These Related Problems?

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