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Finding the Fourth Proportional to 580,545.50, 870,827.48 and 220,721.84

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Solution

The fourth proportional to 580,545.50, 870,827.48 and 220,721.84 is: 331,086.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,545.50 : 870,827.48 = 220,721.84 : x
  2. Step 2: Convert to fraction form
    580,545.50/870,827.48 = 220,721.84/x
  3. Step 3: Cross multiply
    580,545.50x = 870,827.48 × 220,721.84
  4. Step 4: Simplify right side
    580,545.50x = 192,210,643,708.16
  5. Step 5: Solve for x
    x = 192,210,643,708.16/580,545.50
  6. Step 6: Final answer
    x = 331,086.27

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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.