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Finding the Fourth Proportional to 548,732.32, 757,280.04 and 307,000.48

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Solution

The fourth proportional to 548,732.32, 757,280.04 and 307,000.48 is: 423,677.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,732.32 : 757,280.04 = 307,000.48 : x
  2. Step 2: Convert to fraction form
    548,732.32/757,280.04 = 307,000.48/x
  3. Step 3: Cross multiply
    548,732.32x = 757,280.04 × 307,000.48
  4. Step 4: Simplify right side
    548,732.32x = 232,485,335,774.42
  5. Step 5: Solve for x
    x = 232,485,335,774.42/548,732.32
  6. Step 6: Final answer
    x = 423,677.13

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1.5x scale

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.