Home / 519,986.40-779,979.60-183,407.10

Finding the Fourth Proportional to 519,986.40, 779,979.60 and 183,407.10

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Solution

The fourth proportional to 519,986.40, 779,979.60 and 183,407.10 is: 275,110.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,986.40 : 779,979.60 = 183,407.10 : x
  2. Step 2: Convert to fraction form
    519,986.40/779,979.60 = 183,407.10/x
  3. Step 3: Cross multiply
    519,986.40x = 779,979.60 × 183,407.10
  4. Step 4: Simplify right side
    519,986.40x = 143,053,796,495.16
  5. Step 5: Solve for x
    x = 143,053,796,495.16/519,986.40
  6. Step 6: Final answer
    x = 275,110.65

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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.