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Finding the Fourth Proportional to 402,803.00, 555,882.78 and 230,754.22

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Solution

The fourth proportional to 402,803.00, 555,882.78 and 230,754.22 is: 318,449.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,803.00 : 555,882.78 = 230,754.22 : x
  2. Step 2: Convert to fraction form
    402,803.00/555,882.78 = 230,754.22/x
  3. Step 3: Cross multiply
    402,803.00x = 555,882.78 × 230,754.22
  4. Step 4: Simplify right side
    402,803.00x = 128,272,294,838.96
  5. Step 5: Solve for x
    x = 128,272,294,838.96/402,803.00
  6. Step 6: Final answer
    x = 318,449.20

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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.