Home / 527,127.23-727,432.27-285,409.06

Finding the Fourth Proportional to 527,127.23, 727,432.27 and 285,409.06

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Solution

The fourth proportional to 527,127.23, 727,432.27 and 285,409.06 is: 393,862.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,127.23 : 727,432.27 = 285,409.06 : x
  2. Step 2: Convert to fraction form
    527,127.23/727,432.27 = 285,409.06/x
  3. Step 3: Cross multiply
    527,127.23x = 727,432.27 × 285,409.06
  4. Step 4: Simplify right side
    527,127.23x = 207,615,757,862.26
  5. Step 5: Solve for x
    x = 207,615,757,862.26/527,127.23
  6. Step 6: Final answer
    x = 393,862.71

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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.