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Finding the Fourth Proportional to 408,034.40, 610,885.20 and 250,570.40

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Solution

The fourth proportional to 408,034.40, 610,885.20 and 250,570.40 is: 375,139.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,034.40 : 610,885.20 = 250,570.40 : x
  2. Step 2: Convert to fraction form
    408,034.40/610,885.20 = 250,570.40/x
  3. Step 3: Cross multiply
    408,034.40x = 610,885.20 × 250,570.40
  4. Step 4: Simplify right side
    408,034.40x = 153,069,748,918.08
  5. Step 5: Solve for x
    x = 153,069,748,918.08/408,034.40
  6. Step 6: Final answer
    x = 375,139.32

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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.