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Finding the Fourth Proportional to 373,298.55, 559,947.83 and 260,740.95

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Solution

The fourth proportional to 373,298.55, 559,947.83 and 260,740.95 is: 391,111.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,298.55 : 559,947.83 = 260,740.95 : x
  2. Step 2: Convert to fraction form
    373,298.55/559,947.83 = 260,740.95/x
  3. Step 3: Cross multiply
    373,298.55x = 559,947.83 × 260,740.95
  4. Step 4: Simplify right side
    373,298.55x = 146,001,327,840.93
  5. Step 5: Solve for x
    x = 146,001,327,840.93/373,298.55
  6. Step 6: Final answer
    x = 391,111.43

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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.