Home / 865,682.45-1,298,545.95-410,166.80

Finding the Fourth Proportional to 865,682.45, 1,298,545.95 and 410,166.80

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Solution

The fourth proportional to 865,682.45, 1,298,545.95 and 410,166.80 is: 615,260.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,682.45 : 1,298,545.95 = 410,166.80 : x
  2. Step 2: Convert to fraction form
    865,682.45/1,298,545.95 = 410,166.80/x
  3. Step 3: Cross multiply
    865,682.45x = 1,298,545.95 × 410,166.80
  4. Step 4: Simplify right side
    865,682.45x = 532,620,436,964.46
  5. Step 5: Solve for x
    x = 532,620,436,964.46/865,682.45
  6. Step 6: Final answer
    x = 615,260.75

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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.