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Finding the Fourth Proportional to 545,576.87, 817,840.41 and 279,462.71

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Solution

The fourth proportional to 545,576.87, 817,840.41 and 279,462.71 is: 418,925.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,576.87 : 817,840.41 = 279,462.71 : x
  2. Step 2: Convert to fraction form
    545,576.87/817,840.41 = 279,462.71/x
  3. Step 3: Cross multiply
    545,576.87x = 817,840.41 × 279,462.71
  4. Step 4: Simplify right side
    545,576.87x = 228,555,897,326.11
  5. Step 5: Solve for x
    x = 228,555,897,326.11/545,576.87
  6. Step 6: Final answer
    x = 418,925.20

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Double scale
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1.5x scale

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.