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Finding the Fourth Proportional to 559,117.40, 839,332.20 and 555,180.80

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Solution

The fourth proportional to 559,117.40, 839,332.20 and 555,180.80 is: 833,422.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,117.40 : 839,332.20 = 555,180.80 : x
  2. Step 2: Convert to fraction form
    559,117.40/839,332.20 = 555,180.80/x
  3. Step 3: Cross multiply
    559,117.40x = 839,332.20 × 555,180.80
  4. Step 4: Simplify right side
    559,117.40x = 465,981,122,261.76
  5. Step 5: Solve for x
    x = 465,981,122,261.76/559,117.40
  6. Step 6: Final answer
    x = 833,422.68

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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.