Home / 527,153.06-727,602.45-300,929.78

Finding the Fourth Proportional to 527,153.06, 727,602.45 and 300,929.78

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Solution

The fourth proportional to 527,153.06, 727,602.45 and 300,929.78 is: 415,358.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,153.06 : 727,602.45 = 300,929.78 : x
  2. Step 2: Convert to fraction form
    527,153.06/727,602.45 = 300,929.78/x
  3. Step 3: Cross multiply
    527,153.06x = 727,602.45 × 300,929.78
  4. Step 4: Simplify right side
    527,153.06x = 218,957,245,896.48
  5. Step 5: Solve for x
    x = 218,957,245,896.48/527,153.06
  6. Step 6: Final answer
    x = 415,358.01

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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.