Home / 527,128.92-727,434.60-285,410.75

Finding the Fourth Proportional to 527,128.92, 727,434.60 and 285,410.75

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Solution

The fourth proportional to 527,128.92, 727,434.60 and 285,410.75 is: 393,865.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,128.92 : 727,434.60 = 285,410.75 : x
  2. Step 2: Convert to fraction form
    527,128.92/727,434.60 = 285,410.75/x
  3. Step 3: Cross multiply
    527,128.92x = 727,434.60 × 285,410.75
  4. Step 4: Simplify right side
    527,128.92x = 207,617,650,054.49
  5. Step 5: Solve for x
    x = 207,617,650,054.49/527,128.92
  6. Step 6: Final answer
    x = 393,865.03

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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.