Home / 527,970.80-727,894.87-419,435.25

Finding the Fourth Proportional to 527,970.80, 727,894.87 and 419,435.25

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Solution

The fourth proportional to 527,970.80, 727,894.87 and 419,435.25 is: 578,260.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,970.80 : 727,894.87 = 419,435.25 : x
  2. Step 2: Convert to fraction form
    527,970.80/727,894.87 = 419,435.25/x
  3. Step 3: Cross multiply
    527,970.80x = 727,894.87 × 419,435.25
  4. Step 4: Simplify right side
    527,970.80x = 305,304,766,772.17
  5. Step 5: Solve for x
    x = 305,304,766,772.17/527,970.80
  6. Step 6: Final answer
    x = 578,260.70

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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.