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Finding the Fourth Proportional to 692,443.59, 955,568.50 and 402,126.54

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Solution

The fourth proportional to 692,443.59, 955,568.50 and 402,126.54 is: 554,932.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,443.59 : 955,568.50 = 402,126.54 : x
  2. Step 2: Convert to fraction form
    692,443.59/955,568.50 = 402,126.54/x
  3. Step 3: Cross multiply
    692,443.59x = 955,568.50 × 402,126.54
  4. Step 4: Simplify right side
    692,443.59x = 384,259,454,637.99
  5. Step 5: Solve for x
    x = 384,259,454,637.99/692,443.59
  6. Step 6: Final answer
    x = 554,932.50

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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.