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Finding the Fourth Proportional to 658,093.80, 987,140.70 and 623,879.40

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Solution

The fourth proportional to 658,093.80, 987,140.70 and 623,879.40 is: 935,819.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,093.80 : 987,140.70 = 623,879.40 : x
  2. Step 2: Convert to fraction form
    658,093.80/987,140.70 = 623,879.40/x
  3. Step 3: Cross multiply
    658,093.80x = 987,140.70 × 623,879.40
  4. Step 4: Simplify right side
    658,093.80x = 615,856,747,631.58
  5. Step 5: Solve for x
    x = 615,856,747,631.58/658,093.80
  6. Step 6: Final answer
    x = 935,819.10

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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.