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Finding the Fourth Proportional to 526,442.07, 787,585.43 and 398,726.36

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Solution

The fourth proportional to 526,442.07, 787,585.43 and 398,726.36 is: 596,515.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,442.07 : 787,585.43 = 398,726.36 : x
  2. Step 2: Convert to fraction form
    526,442.07/787,585.43 = 398,726.36/x
  3. Step 3: Cross multiply
    526,442.07x = 787,585.43 × 398,726.36
  4. Step 4: Simplify right side
    526,442.07x = 314,031,065,761.38
  5. Step 5: Solve for x
    x = 314,031,065,761.38/526,442.07
  6. Step 6: Final answer
    x = 596,515.90

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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.