Home / 498,314.03-687,434.24-326,156.22

Finding the Fourth Proportional to 498,314.03, 687,434.24 and 326,156.22

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Solution

The fourth proportional to 498,314.03, 687,434.24 and 326,156.22 is: 449,939.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,314.03 : 687,434.24 = 326,156.22 : x
  2. Step 2: Convert to fraction form
    498,314.03/687,434.24 = 326,156.22/x
  3. Step 3: Cross multiply
    498,314.03x = 687,434.24 × 326,156.22
  4. Step 4: Simplify right side
    498,314.03x = 224,210,954,032.36
  5. Step 5: Solve for x
    x = 224,210,954,032.36/498,314.03
  6. Step 6: Final answer
    x = 449,939.08

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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.