Home / 641,217.64-884,906.40-354,732.79

Finding the Fourth Proportional to 641,217.64, 884,906.40 and 354,732.79

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Solution

The fourth proportional to 641,217.64, 884,906.40 and 354,732.79 is: 489,545.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,217.64 : 884,906.40 = 354,732.79 : x
  2. Step 2: Convert to fraction form
    641,217.64/884,906.40 = 354,732.79/x
  3. Step 3: Cross multiply
    641,217.64x = 884,906.40 × 354,732.79
  4. Step 4: Simplify right side
    641,217.64x = 313,905,316,160.86
  5. Step 5: Solve for x
    x = 313,905,316,160.86/641,217.64
  6. Step 6: Final answer
    x = 489,545.67

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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.