Home / 811,359.64-1,119,601.16-448,775.69

Finding the Fourth Proportional to 811,359.64, 1,119,601.16 and 448,775.69

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Solution

The fourth proportional to 811,359.64, 1,119,601.16 and 448,775.69 is: 619,268.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,359.64 : 1,119,601.16 = 448,775.69 : x
  2. Step 2: Convert to fraction form
    811,359.64/1,119,601.16 = 448,775.69/x
  3. Step 3: Cross multiply
    811,359.64x = 1,119,601.16 × 448,775.69
  4. Step 4: Simplify right side
    811,359.64x = 502,449,783,242.58
  5. Step 5: Solve for x
    x = 502,449,783,242.58/811,359.64
  6. Step 6: Final answer
    x = 619,268.89

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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.