Home / 681,244.07-940,117.69-371,145.12

Finding the Fourth Proportional to 681,244.07, 940,117.69 and 371,145.12

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Solution

The fourth proportional to 681,244.07, 940,117.69 and 371,145.12 is: 512,180.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,244.07 : 940,117.69 = 371,145.12 : x
  2. Step 2: Convert to fraction form
    681,244.07/940,117.69 = 371,145.12/x
  3. Step 3: Cross multiply
    681,244.07x = 940,117.69 × 371,145.12
  4. Step 4: Simplify right side
    681,244.07x = 348,920,091,941.31
  5. Step 5: Solve for x
    x = 348,920,091,941.31/681,244.07
  6. Step 6: Final answer
    x = 512,180.74

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Double scale
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Similar ratio
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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.