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Finding the Fourth Proportional to 7,000,502.40, 10,488,943.80 and 3,398,513.40

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Solution

The fourth proportional to 7,000,502.40, 10,488,943.80 and 3,398,513.40 is: 5,092,036.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,000,502.40 : 10,488,943.80 = 3,398,513.40 : x
  2. Step 2: Convert to fraction form
    7,000,502.40/10,488,943.80 = 3,398,513.40/x
  3. Step 3: Cross multiply
    7,000,502.40x = 10,488,943.80 × 3,398,513.40
  4. Step 4: Simplify right side
    7,000,502.40x = 35,646,816,056,146.92
  5. Step 5: Solve for x
    x = 35,646,816,056,146.92/7,000,502.40
  6. Step 6: Final answer
    x = 5,092,036.83

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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.