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Finding the Fourth Proportional to 425,087.70, 636,155.33 and 292,227.45

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Solution

The fourth proportional to 425,087.70, 636,155.33 and 292,227.45 is: 437,326.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,087.70 : 636,155.33 = 292,227.45 : x
  2. Step 2: Convert to fraction form
    425,087.70/636,155.33 = 292,227.45/x
  3. Step 3: Cross multiply
    425,087.70x = 636,155.33 × 292,227.45
  4. Step 4: Simplify right side
    425,087.70x = 185,902,048,428.67
  5. Step 5: Solve for x
    x = 185,902,048,428.67/425,087.70
  6. Step 6: Final answer
    x = 437,326.34

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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.