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Finding the Fourth Proportional to 586,999.80, 881,082.90 and 287,818.20

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Solution

The fourth proportional to 586,999.80, 881,082.90 and 287,818.20 is: 432,013.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,999.80 : 881,082.90 = 287,818.20 : x
  2. Step 2: Convert to fraction form
    586,999.80/881,082.90 = 287,818.20/x
  3. Step 3: Cross multiply
    586,999.80x = 881,082.90 × 287,818.20
  4. Step 4: Simplify right side
    586,999.80x = 253,591,694,328.78
  5. Step 5: Solve for x
    x = 253,591,694,328.78/586,999.80
  6. Step 6: Final answer
    x = 432,013.26

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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.