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Finding the Fourth Proportional to 554,342.97, 764,718.27 and 358,041.95

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Solution

The fourth proportional to 554,342.97, 764,718.27 and 358,041.95 is: 493,920.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,342.97 : 764,718.27 = 358,041.95 : x
  2. Step 2: Convert to fraction form
    554,342.97/764,718.27 = 358,041.95/x
  3. Step 3: Cross multiply
    554,342.97x = 764,718.27 × 358,041.95
  4. Step 4: Simplify right side
    554,342.97x = 273,801,220,591.43
  5. Step 5: Solve for x
    x = 273,801,220,591.43/554,342.97
  6. Step 6: Final answer
    x = 493,920.25

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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.