Home / 811,101.38-1,119,327.18-448,549.64

Finding the Fourth Proportional to 811,101.38, 1,119,327.18 and 448,549.64

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Solution

The fourth proportional to 811,101.38, 1,119,327.18 and 448,549.64 is: 619,002.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,101.38 : 1,119,327.18 = 448,549.64 : x
  2. Step 2: Convert to fraction form
    811,101.38/1,119,327.18 = 448,549.64/x
  3. Step 3: Cross multiply
    811,101.38x = 1,119,327.18 × 448,549.64
  4. Step 4: Simplify right side
    811,101.38x = 502,073,803,631.22
  5. Step 5: Solve for x
    x = 502,073,803,631.22/811,101.38
  6. Step 6: Final answer
    x = 619,002.53

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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.