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Finding the Fourth Proportional to 586,381.90, 878,536.05 and 520,026.70

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Solution

The fourth proportional to 586,381.90, 878,536.05 and 520,026.70 is: 779,120.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,381.90 : 878,536.05 = 520,026.70 : x
  2. Step 2: Convert to fraction form
    586,381.90/878,536.05 = 520,026.70/x
  3. Step 3: Cross multiply
    586,381.90x = 878,536.05 × 520,026.70
  4. Step 4: Simplify right side
    586,381.90x = 456,862,202,912.54
  5. Step 5: Solve for x
    x = 456,862,202,912.54/586,381.90
  6. Step 6: Final answer
    x = 779,120.57

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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.