Home / 526,820.38-726,933.87-319,981.12

Finding the Fourth Proportional to 526,820.38, 726,933.87 and 319,981.12

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Solution

The fourth proportional to 526,820.38, 726,933.87 and 319,981.12 is: 441,526.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,820.38 : 726,933.87 = 319,981.12 : x
  2. Step 2: Convert to fraction form
    526,820.38/726,933.87 = 319,981.12/x
  3. Step 3: Cross multiply
    526,820.38x = 726,933.87 × 319,981.12
  4. Step 4: Simplify right side
    526,820.38x = 232,605,113,888.53
  5. Step 5: Solve for x
    x = 232,605,113,888.53/526,820.38
  6. Step 6: Final answer
    x = 441,526.42

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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.