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Finding the Fourth Proportional to 586,999.30, 881,082.15 and 287,817.70

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Solution

The fourth proportional to 586,999.30, 881,082.15 and 287,817.70 is: 432,012.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,999.30 : 881,082.15 = 287,817.70 : x
  2. Step 2: Convert to fraction form
    586,999.30/881,082.15 = 287,817.70/x
  3. Step 3: Cross multiply
    586,999.30x = 881,082.15 × 287,817.70
  4. Step 4: Simplify right side
    586,999.30x = 253,591,037,924.06
  5. Step 5: Solve for x
    x = 253,591,037,924.06/586,999.30
  6. Step 6: Final answer
    x = 432,012.50

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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.