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Finding the Fourth Proportional to 474,338.71, 654,587.20 and 259,478.72

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Solution

The fourth proportional to 474,338.71, 654,587.20 and 259,478.72 is: 358,080.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,338.71 : 654,587.20 = 259,478.72 : x
  2. Step 2: Convert to fraction form
    474,338.71/654,587.20 = 259,478.72/x
  3. Step 3: Cross multiply
    474,338.71x = 654,587.20 × 259,478.72
  4. Step 4: Simplify right side
    474,338.71x = 169,851,448,784.38
  5. Step 5: Solve for x
    x = 169,851,448,784.38/474,338.71
  6. Step 6: Final answer
    x = 358,080.51

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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.