Home / 810,194.24-1,117,600.80-487,680.32

Finding the Fourth Proportional to 810,194.24, 1,117,600.80 and 487,680.32

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Solution

The fourth proportional to 810,194.24, 1,117,600.80 and 487,680.32 is: 672,717.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,194.24 : 1,117,600.80 = 487,680.32 : x
  2. Step 2: Convert to fraction form
    810,194.24/1,117,600.80 = 487,680.32/x
  3. Step 3: Cross multiply
    810,194.24x = 1,117,600.80 × 487,680.32
  4. Step 4: Simplify right side
    810,194.24x = 545,031,915,776.26
  5. Step 5: Solve for x
    x = 545,031,915,776.26/810,194.24
  6. Step 6: Final answer
    x = 672,717.59

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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.