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Finding the Fourth Proportional to 555,218.40, 833,216.40 and 356,023.20

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Solution

The fourth proportional to 555,218.40, 833,216.40 and 356,023.20 is: 534,284.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,218.40 : 833,216.40 = 356,023.20 : x
  2. Step 2: Convert to fraction form
    555,218.40/833,216.40 = 356,023.20/x
  3. Step 3: Cross multiply
    555,218.40x = 833,216.40 × 356,023.20
  4. Step 4: Simplify right side
    555,218.40x = 296,644,369,020.48
  5. Step 5: Solve for x
    x = 296,644,369,020.48/555,218.40
  6. Step 6: Final answer
    x = 534,284.11

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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.