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Finding the Fourth Proportional to 583,418.60, 875,322.30 and 520,706.60

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Solution

The fourth proportional to 583,418.60, 875,322.30 and 520,706.60 is: 781,233.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,418.60 : 875,322.30 = 520,706.60 : x
  2. Step 2: Convert to fraction form
    583,418.60/875,322.30 = 520,706.60/x
  3. Step 3: Cross multiply
    583,418.60x = 875,322.30 × 520,706.60
  4. Step 4: Simplify right side
    583,418.60x = 455,786,098,737.18
  5. Step 5: Solve for x
    x = 455,786,098,737.18/583,418.60
  6. Step 6: Final answer
    x = 781,233.40

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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.