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Finding the Fourth Proportional to 598,649.32, 898,129.66 and 299,117.80

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Solution

The fourth proportional to 598,649.32, 898,129.66 and 299,117.80 is: 448,754.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,649.32 : 898,129.66 = 299,117.80 : x
  2. Step 2: Convert to fraction form
    598,649.32/898,129.66 = 299,117.80/x
  3. Step 3: Cross multiply
    598,649.32x = 898,129.66 × 299,117.80
  4. Step 4: Simplify right side
    598,649.32x = 268,646,568,013.95
  5. Step 5: Solve for x
    x = 268,646,568,013.95/598,649.32
  6. Step 6: Final answer
    x = 448,754.49

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.