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Finding the Fourth Proportional to 692,700,859.81, 955,926,884.48 and 375,161,120.29

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Solution

The fourth proportional to 692,700,859.81, 955,926,884.48 and 375,161,120.29 is: 517,722,182.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,700,859.81 : 955,926,884.48 = 375,161,120.29 : x
  2. Step 2: Convert to fraction form
    692,700,859.81/955,926,884.48 = 375,161,120.29/x
  3. Step 3: Cross multiply
    692,700,859.81x = 955,926,884.48 × 375,161,120.29
  4. Step 4: Simplify right side
    692,700,859.81x = 358,626,600,896,846,272
  5. Step 5: Solve for x
    x = 358,626,600,896,846,272/692,700,859.81
  6. Step 6: Final answer
    x = 517,722,182.41

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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.