Home / 527,966.80-727,889.35-419,431.25

Finding the Fourth Proportional to 527,966.80, 727,889.35 and 419,431.25

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Solution

The fourth proportional to 527,966.80, 727,889.35 and 419,431.25 is: 578,255.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,966.80 : 727,889.35 = 419,431.25 : x
  2. Step 2: Convert to fraction form
    527,966.80/727,889.35 = 419,431.25/x
  3. Step 3: Cross multiply
    527,966.80x = 727,889.35 × 419,431.25
  4. Step 4: Simplify right side
    527,966.80x = 305,299,539,932.19
  5. Step 5: Solve for x
    x = 305,299,539,932.19/527,966.80
  6. Step 6: Final answer
    x = 578,255.19

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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.