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Finding the Fourth Proportional to 698,201.25, 963,458.55 and 392,253.63

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Solution

The fourth proportional to 698,201.25, 963,458.55 and 392,253.63 is: 541,276.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,201.25 : 963,458.55 = 392,253.63 : x
  2. Step 2: Convert to fraction form
    698,201.25/963,458.55 = 392,253.63/x
  3. Step 3: Cross multiply
    698,201.25x = 963,458.55 × 392,253.63
  4. Step 4: Simplify right side
    698,201.25x = 377,920,113,592.04
  5. Step 5: Solve for x
    x = 377,920,113,592.04/698,201.25
  6. Step 6: Final answer
    x = 541,276.76

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1.5x scale

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.