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Finding the Fourth Proportional to 611,733.80, 917,600.70 and 454,269.80

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Solution

The fourth proportional to 611,733.80, 917,600.70 and 454,269.80 is: 681,404.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,733.80 : 917,600.70 = 454,269.80 : x
  2. Step 2: Convert to fraction form
    611,733.80/917,600.70 = 454,269.80/x
  3. Step 3: Cross multiply
    611,733.80x = 917,600.70 × 454,269.80
  4. Step 4: Simplify right side
    611,733.80x = 416,838,286,468.86
  5. Step 5: Solve for x
    x = 416,838,286,468.86/611,733.80
  6. Step 6: Final answer
    x = 681,404.70

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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.