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Finding the Fourth Proportional to 570,641.88, 855,960.76 and 171,280.92

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Solution

The fourth proportional to 570,641.88, 855,960.76 and 171,280.92 is: 256,920.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,641.88 : 855,960.76 = 171,280.92 : x
  2. Step 2: Convert to fraction form
    570,641.88/855,960.76 = 171,280.92/x
  3. Step 3: Cross multiply
    570,641.88x = 855,960.76 × 171,280.92
  4. Step 4: Simplify right side
    570,641.88x = 146,609,746,456.70
  5. Step 5: Solve for x
    x = 146,609,746,456.70/570,641.88
  6. Step 6: Final answer
    x = 256,920.76

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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.