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Finding the Fourth Proportional to 625,683.32, 863,216.70 and 410,939.80

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Solution

The fourth proportional to 625,683.32, 863,216.70 and 410,939.80 is: 566,948.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,683.32 : 863,216.70 = 410,939.80 : x
  2. Step 2: Convert to fraction form
    625,683.32/863,216.70 = 410,939.80/x
  3. Step 3: Cross multiply
    625,683.32x = 863,216.70 × 410,939.80
  4. Step 4: Simplify right side
    625,683.32x = 354,730,098,054.66
  5. Step 5: Solve for x
    x = 354,730,098,054.66/625,683.32
  6. Step 6: Final answer
    x = 566,948.31

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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.