Home / 681,528.76-940,669.96-423,600.50

Finding the Fourth Proportional to 681,528.76, 940,669.96 and 423,600.50

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Solution

The fourth proportional to 681,528.76, 940,669.96 and 423,600.50 is: 584,668.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,528.76 : 940,669.96 = 423,600.50 : x
  2. Step 2: Convert to fraction form
    681,528.76/940,669.96 = 423,600.50/x
  3. Step 3: Cross multiply
    681,528.76x = 940,669.96 × 423,600.50
  4. Step 4: Simplify right side
    681,528.76x = 398,468,265,390.98
  5. Step 5: Solve for x
    x = 398,468,265,390.98/681,528.76
  6. Step 6: Final answer
    x = 584,668.31

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Double scale
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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.