Home / 718,618.55-991,443.19-460,637.76

Finding the Fourth Proportional to 718,618.55, 991,443.19 and 460,637.76

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Solution

The fourth proportional to 718,618.55, 991,443.19 and 460,637.76 is: 635,519.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,618.55 : 991,443.19 = 460,637.76 : x
  2. Step 2: Convert to fraction form
    718,618.55/991,443.19 = 460,637.76/x
  3. Step 3: Cross multiply
    718,618.55x = 991,443.19 × 460,637.76
  4. Step 4: Simplify right side
    718,618.55x = 456,696,170,208.85
  5. Step 5: Solve for x
    x = 456,696,170,208.85/718,618.55
  6. Step 6: Final answer
    x = 635,519.60

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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.