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Finding the Fourth Proportional to 625,102.64, 862,466.58 and 392,554.64

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Solution

The fourth proportional to 625,102.64, 862,466.58 and 392,554.64 is: 541,615.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,102.64 : 862,466.58 = 392,554.64 : x
  2. Step 2: Convert to fraction form
    625,102.64/862,466.58 = 392,554.64/x
  3. Step 3: Cross multiply
    625,102.64x = 862,466.58 × 392,554.64
  4. Step 4: Simplify right side
    625,102.64x = 338,565,257,823.93
  5. Step 5: Solve for x
    x = 338,565,257,823.93/625,102.64
  6. Step 6: Final answer
    x = 541,615.47

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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.