Home / 641,018.30-884,545.88-354,532.23

Finding the Fourth Proportional to 641,018.30, 884,545.88 and 354,532.23

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Solution

The fourth proportional to 641,018.30, 884,545.88 and 354,532.23 is: 489,221.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,018.30 : 884,545.88 = 354,532.23 : x
  2. Step 2: Convert to fraction form
    641,018.30/884,545.88 = 354,532.23/x
  3. Step 3: Cross multiply
    641,018.30x = 884,545.88 × 354,532.23
  4. Step 4: Simplify right side
    641,018.30x = 313,600,021,601.05
  5. Step 5: Solve for x
    x = 313,600,021,601.05/641,018.30
  6. Step 6: Final answer
    x = 489,221.64

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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.