Home / 527,127.62-727,432.79-285,409.44

Finding the Fourth Proportional to 527,127.62, 727,432.79 and 285,409.44

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Solution

The fourth proportional to 527,127.62, 727,432.79 and 285,409.44 is: 393,863.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,127.62 : 727,432.79 = 285,409.44 : x
  2. Step 2: Convert to fraction form
    527,127.62/727,432.79 = 285,409.44/x
  3. Step 3: Cross multiply
    527,127.62x = 727,432.79 × 285,409.44
  4. Step 4: Simplify right side
    527,127.62x = 207,616,183,804.49
  5. Step 5: Solve for x
    x = 207,616,183,804.49/527,127.62
  6. Step 6: Final answer
    x = 393,863.23

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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.