Home / 623,419.12-860,631.24-408,887.92

Finding the Fourth Proportional to 623,419.12, 860,631.24 and 408,887.92

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Solution

The fourth proportional to 623,419.12, 860,631.24 and 408,887.92 is: 564,470.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,419.12 : 860,631.24 = 408,887.92 : x
  2. Step 2: Convert to fraction form
    623,419.12/860,631.24 = 408,887.92/x
  3. Step 3: Cross multiply
    623,419.12x = 860,631.24 × 408,887.92
  4. Step 4: Simplify right side
    623,419.12x = 351,901,717,610.62
  5. Step 5: Solve for x
    x = 351,901,717,610.62/623,419.12
  6. Step 6: Final answer
    x = 564,470.52

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1.5x scale

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.