Home / 527,132.74-727,443.52-285,415.47

Finding the Fourth Proportional to 527,132.74, 727,443.52 and 285,415.47

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Solution

The fourth proportional to 527,132.74, 727,443.52 and 285,415.47 is: 393,873.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,132.74 : 727,443.52 = 285,415.47 : x
  2. Step 2: Convert to fraction form
    527,132.74/727,443.52 = 285,415.47/x
  3. Step 3: Cross multiply
    527,132.74x = 727,443.52 × 285,415.47
  4. Step 4: Simplify right side
    527,132.74x = 207,623,634,159.25
  5. Step 5: Solve for x
    x = 207,623,634,159.25/527,132.74
  6. Step 6: Final answer
    x = 393,873.53

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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.