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Finding the Fourth Proportional to 356,124.27, 534,447.77 and 286,840.11

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Solution

The fourth proportional to 356,124.27, 534,447.77 and 286,840.11 is: 430,470.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,124.27 : 534,447.77 = 286,840.11 : x
  2. Step 2: Convert to fraction form
    356,124.27/534,447.77 = 286,840.11/x
  3. Step 3: Cross multiply
    356,124.27x = 534,447.77 × 286,840.11
  4. Step 4: Simplify right side
    356,124.27x = 153,301,055,701.85
  5. Step 5: Solve for x
    x = 153,301,055,701.85/356,124.27
  6. Step 6: Final answer
    x = 430,470.68

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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.