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Finding the Fourth Proportional to 611,544.20, 917,316.30 and 587,049.80

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Solution

The fourth proportional to 611,544.20, 917,316.30 and 587,049.80 is: 880,574.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,544.20 : 917,316.30 = 587,049.80 : x
  2. Step 2: Convert to fraction form
    611,544.20/917,316.30 = 587,049.80/x
  3. Step 3: Cross multiply
    611,544.20x = 917,316.30 × 587,049.80
  4. Step 4: Simplify right side
    611,544.20x = 538,510,350,451.74
  5. Step 5: Solve for x
    x = 538,510,350,451.74/611,544.20
  6. Step 6: Final answer
    x = 880,574.70

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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.