Home / 527,178.28-727,512.08-285,466.36

Finding the Fourth Proportional to 527,178.28, 727,512.08 and 285,466.36

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Solution

The fourth proportional to 527,178.28, 727,512.08 and 285,466.36 is: 393,946.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,178.28 : 727,512.08 = 285,466.36 : x
  2. Step 2: Convert to fraction form
    527,178.28/727,512.08 = 285,466.36/x
  3. Step 3: Cross multiply
    527,178.28x = 727,512.08 × 285,466.36
  4. Step 4: Simplify right side
    527,178.28x = 207,680,225,333.63
  5. Step 5: Solve for x
    x = 207,680,225,333.63/527,178.28
  6. Step 6: Final answer
    x = 393,946.85

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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.