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Finding the Fourth Proportional to 426,404.66, 588,434.63 and 235,413.95

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Solution

The fourth proportional to 426,404.66, 588,434.63 and 235,413.95 is: 324,869.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,404.66 : 588,434.63 = 235,413.95 : x
  2. Step 2: Convert to fraction form
    426,404.66/588,434.63 = 235,413.95/x
  3. Step 3: Cross multiply
    426,404.66x = 588,434.63 × 235,413.95
  4. Step 4: Simplify right side
    426,404.66x = 138,525,716,445.85
  5. Step 5: Solve for x
    x = 138,525,716,445.85/426,404.66
  6. Step 6: Final answer
    x = 324,869.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.