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Finding the Fourth Proportional to 641,702.83, 963,500.48 and 357,947.79

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Solution

The fourth proportional to 641,702.83, 963,500.48 and 357,947.79 is: 537,449.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,702.83 : 963,500.48 = 357,947.79 : x
  2. Step 2: Convert to fraction form
    641,702.83/963,500.48 = 357,947.79/x
  3. Step 3: Cross multiply
    641,702.83x = 963,500.48 × 357,947.79
  4. Step 4: Simplify right side
    641,702.83x = 344,882,867,479.94
  5. Step 5: Solve for x
    x = 344,882,867,479.94/641,702.83
  6. Step 6: Final answer
    x = 537,449.50

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1.5x scale

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.