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Finding the Fourth Proportional to 590,506.80, 885,760.20 and 391,052.40

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Solution

The fourth proportional to 590,506.80, 885,760.20 and 391,052.40 is: 586,578.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,506.80 : 885,760.20 = 391,052.40 : x
  2. Step 2: Convert to fraction form
    590,506.80/885,760.20 = 391,052.40/x
  3. Step 3: Cross multiply
    590,506.80x = 885,760.20 × 391,052.40
  4. Step 4: Simplify right side
    590,506.80x = 346,378,652,034.48
  5. Step 5: Solve for x
    x = 346,378,652,034.48/590,506.80
  6. Step 6: Final answer
    x = 586,578.60

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Similar ratio
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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.