Home / 898,385.16-1,239,775.68-490,496.33

Finding the Fourth Proportional to 898,385.16, 1,239,775.68 and 490,496.33

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Solution

The fourth proportional to 898,385.16, 1,239,775.68 and 490,496.33 is: 676,887.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,385.16 : 1,239,775.68 = 490,496.33 : x
  2. Step 2: Convert to fraction form
    898,385.16/1,239,775.68 = 490,496.33/x
  3. Step 3: Cross multiply
    898,385.16x = 1,239,775.68 × 490,496.33
  4. Step 4: Simplify right side
    898,385.16x = 608,105,414,864.38
  5. Step 5: Solve for x
    x = 608,105,414,864.38/898,385.16
  6. Step 6: Final answer
    x = 676,887.20

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Half scale
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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.