Home / 1,561,192-2,154,448.56-872,888.38

Finding the Fourth Proportional to 1,561,192, 2,154,448.56 and 872,888.38

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Solution

The fourth proportional to 1,561,192, 2,154,448.56 and 872,888.38 is: 1,204,587.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,561,192 : 2,154,448.56 = 872,888.38 : x
  2. Step 2: Convert to fraction form
    1,561,192/2,154,448.56 = 872,888.38/x
  3. Step 3: Cross multiply
    1,561,192x = 2,154,448.56 × 872,888.38
  4. Step 4: Simplify right side
    1,561,192x = 1,880,593,113,331.73
  5. Step 5: Solve for x
    x = 1,880,593,113,331.73/1,561,192
  6. Step 6: Final answer
    x = 1,204,587.98

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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.