Home / 681,440.18-940,374.77-375,544.89

Finding the Fourth Proportional to 681,440.18, 940,374.77 and 375,544.89

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Solution

The fourth proportional to 681,440.18, 940,374.77 and 375,544.89 is: 518,244.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,440.18 : 940,374.77 = 375,544.89 : x
  2. Step 2: Convert to fraction form
    681,440.18/940,374.77 = 375,544.89/x
  3. Step 3: Cross multiply
    681,440.18x = 940,374.77 × 375,544.89
  4. Step 4: Simplify right side
    681,440.18x = 353,152,937,680.70
  5. Step 5: Solve for x
    x = 353,152,937,680.70/681,440.18
  6. Step 6: Final answer
    x = 518,244.96

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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.