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Finding the Fourth Proportional to 617,874.40, 925,256.40 and 406,367.20

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Solution

The fourth proportional to 617,874.40, 925,256.40 and 406,367.20 is: 608,527.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,874.40 : 925,256.40 = 406,367.20 : x
  2. Step 2: Convert to fraction form
    617,874.40/925,256.40 = 406,367.20/x
  3. Step 3: Cross multiply
    617,874.40x = 925,256.40 × 406,367.20
  4. Step 4: Simplify right side
    617,874.40x = 375,993,852,550.08
  5. Step 5: Solve for x
    x = 375,993,852,550.08/617,874.40
  6. Step 6: Final answer
    x = 608,527.97

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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.