Home / 811,102.38-1,119,328.56-448,550.64

Finding the Fourth Proportional to 811,102.38, 1,119,328.56 and 448,550.64

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Solution

The fourth proportional to 811,102.38, 1,119,328.56 and 448,550.64 is: 619,003.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,102.38 : 1,119,328.56 = 448,550.64 : x
  2. Step 2: Convert to fraction form
    811,102.38/1,119,328.56 = 448,550.64/x
  3. Step 3: Cross multiply
    811,102.38x = 1,119,328.56 × 448,550.64
  4. Step 4: Simplify right side
    811,102.38x = 502,075,541,958.28
  5. Step 5: Solve for x
    x = 502,075,541,958.28/811,102.38
  6. Step 6: Final answer
    x = 619,003.91

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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.