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Finding the Fourth Proportional to 417,216.40, 625,824.60 and 400,886.80

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Solution

The fourth proportional to 417,216.40, 625,824.60 and 400,886.80 is: 601,330.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,216.40 : 625,824.60 = 400,886.80 : x
  2. Step 2: Convert to fraction form
    417,216.40/625,824.60 = 400,886.80/x
  3. Step 3: Cross multiply
    417,216.40x = 625,824.60 × 400,886.80
  4. Step 4: Simplify right side
    417,216.40x = 250,884,821,255.28
  5. Step 5: Solve for x
    x = 250,884,821,255.28/417,216.40
  6. Step 6: Final answer
    x = 601,330.20

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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.