Home / 527,127.48-727,432.62-285,409.30

Finding the Fourth Proportional to 527,127.48, 727,432.62 and 285,409.30

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Solution

The fourth proportional to 527,127.48, 727,432.62 and 285,409.30 is: 393,863.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,127.48 : 727,432.62 = 285,409.30 : x
  2. Step 2: Convert to fraction form
    527,127.48/727,432.62 = 285,409.30/x
  3. Step 3: Cross multiply
    527,127.48x = 727,432.62 × 285,409.30
  4. Step 4: Simplify right side
    527,127.48x = 207,616,034,871.37
  5. Step 5: Solve for x
    x = 207,616,034,871.37/527,127.48
  6. Step 6: Final answer
    x = 393,863.05

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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.