Home / 1,205,790.12-1,663,885.46-661,925.14

Finding the Fourth Proportional to 1,205,790.12, 1,663,885.46 and 661,925.14

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Solution

The fourth proportional to 1,205,790.12, 1,663,885.46 and 661,925.14 is: 913,399.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,790.12 : 1,663,885.46 = 661,925.14 : x
  2. Step 2: Convert to fraction form
    1,205,790.12/1,663,885.46 = 661,925.14/x
  3. Step 3: Cross multiply
    1,205,790.12x = 1,663,885.46 × 661,925.14
  4. Step 4: Simplify right side
    1,205,790.12x = 1,101,367,613,549.56
  5. Step 5: Solve for x
    x = 1,101,367,613,549.56/1,205,790.12
  6. Step 6: Final answer
    x = 913,399.10

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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.