Home / 899,406.91-1,241,199.48-491,534.11

Finding the Fourth Proportional to 899,406.91, 1,241,199.48 and 491,534.11

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Solution

The fourth proportional to 899,406.91, 1,241,199.48 and 491,534.11 is: 678,326.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,406.91 : 1,241,199.48 = 491,534.11 : x
  2. Step 2: Convert to fraction form
    899,406.91/1,241,199.48 = 491,534.11/x
  3. Step 3: Cross multiply
    899,406.91x = 1,241,199.48 × 491,534.11
  4. Step 4: Simplify right side
    899,406.91x = 610,091,881,734.26
  5. Step 5: Solve for x
    x = 610,091,881,734.26/899,406.91
  6. Step 6: Final answer
    x = 678,326.88

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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.