Home / 526,972.16-727,222-285,253.98

Finding the Fourth Proportional to 526,972.16, 727,222 and 285,253.98

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Solution

The fourth proportional to 526,972.16, 727,222 and 285,253.98 is: 393,650.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,972.16 : 727,222 = 285,253.98 : x
  2. Step 2: Convert to fraction form
    526,972.16/727,222 = 285,253.98/x
  3. Step 3: Cross multiply
    526,972.16x = 727,222 × 285,253.98
  4. Step 4: Simplify right side
    526,972.16x = 207,442,969,843.56
  5. Step 5: Solve for x
    x = 207,442,969,843.56/526,972.16
  6. Step 6: Final answer
    x = 393,650.72

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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.