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Finding the Fourth Proportional to 665,117.30, 997,675.95 and 654,619.70

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Solution

The fourth proportional to 665,117.30, 997,675.95 and 654,619.70 is: 981,929.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,117.30 : 997,675.95 = 654,619.70 : x
  2. Step 2: Convert to fraction form
    665,117.30/997,675.95 = 654,619.70/x
  3. Step 3: Cross multiply
    665,117.30x = 997,675.95 × 654,619.70
  4. Step 4: Simplify right side
    665,117.30x = 653,098,331,086.22
  5. Step 5: Solve for x
    x = 653,098,331,086.22/665,117.30
  6. Step 6: Final answer
    x = 981,929.55

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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.