Home / 526,816.78-727,008.45-285,101.12

Finding the Fourth Proportional to 526,816.78, 727,008.45 and 285,101.12

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Solution

The fourth proportional to 526,816.78, 727,008.45 and 285,101.12 is: 393,440.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,816.78 : 727,008.45 = 285,101.12 : x
  2. Step 2: Convert to fraction form
    526,816.78/727,008.45 = 285,101.12/x
  3. Step 3: Cross multiply
    526,816.78x = 727,008.45 × 285,101.12
  4. Step 4: Simplify right side
    526,816.78x = 207,270,920,243.99
  5. Step 5: Solve for x
    x = 207,270,920,243.99/526,816.78
  6. Step 6: Final answer
    x = 393,440.24

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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.