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Finding the Fourth Proportional to 692,214.32, 955,253.88 and 386,287.52

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Solution

The fourth proportional to 692,214.32, 955,253.88 and 386,287.52 is: 533,075.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,214.32 : 955,253.88 = 386,287.52 : x
  2. Step 2: Convert to fraction form
    692,214.32/955,253.88 = 386,287.52/x
  3. Step 3: Cross multiply
    692,214.32x = 955,253.88 × 386,287.52
  4. Step 4: Simplify right side
    692,214.32x = 369,002,652,275.58
  5. Step 5: Solve for x
    x = 369,002,652,275.58/692,214.32
  6. Step 6: Final answer
    x = 533,075.73

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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.