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Finding the Fourth Proportional to 623,718.32, 860,726.27 and 362,097.90

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Solution

The fourth proportional to 623,718.32, 860,726.27 and 362,097.90 is: 499,692.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,718.32 : 860,726.27 = 362,097.90 : x
  2. Step 2: Convert to fraction form
    623,718.32/860,726.27 = 362,097.90/x
  3. Step 3: Cross multiply
    623,718.32x = 860,726.27 × 362,097.90
  4. Step 4: Simplify right side
    623,718.32x = 311,667,177,898.89
  5. Step 5: Solve for x
    x = 311,667,177,898.89/623,718.32
  6. Step 6: Final answer
    x = 499,692.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.