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Finding the Fourth Proportional to 370,256.80, 555,061.20 and 251,543.20

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Solution

The fourth proportional to 370,256.80, 555,061.20 and 251,543.20 is: 377,094.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,256.80 : 555,061.20 = 251,543.20 : x
  2. Step 2: Convert to fraction form
    370,256.80/555,061.20 = 251,543.20/x
  3. Step 3: Cross multiply
    370,256.80x = 555,061.20 × 251,543.20
  4. Step 4: Simplify right side
    370,256.80x = 139,621,870,443.84
  5. Step 5: Solve for x
    x = 139,621,870,443.84/370,256.80
  6. Step 6: Final answer
    x = 377,094.68

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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.