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Finding the Fourth Proportional to 288,695.04, 433,291.80 and 255,064.48

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Solution

The fourth proportional to 288,695.04, 433,291.80 and 255,064.48 is: 382,816.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,695.04 : 433,291.80 = 255,064.48 : x
  2. Step 2: Convert to fraction form
    288,695.04/433,291.80 = 255,064.48/x
  3. Step 3: Cross multiply
    288,695.04x = 433,291.80 × 255,064.48
  4. Step 4: Simplify right side
    288,695.04x = 110,517,347,655.26
  5. Step 5: Solve for x
    x = 110,517,347,655.26/288,695.04
  6. Step 6: Final answer
    x = 382,816.93

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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.