Home / 1,211,565.11-1,671,952.14-660,279.83

Finding the Fourth Proportional to 1,211,565.11, 1,671,952.14 and 660,279.83

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Solution

The fourth proportional to 1,211,565.11, 1,671,952.14 and 660,279.83 is: 911,181.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,565.11 : 1,671,952.14 = 660,279.83 : x
  2. Step 2: Convert to fraction form
    1,211,565.11/1,671,952.14 = 660,279.83/x
  3. Step 3: Cross multiply
    1,211,565.11x = 1,671,952.14 × 660,279.83
  4. Step 4: Simplify right side
    1,211,565.11x = 1,103,956,266,407.58
  5. Step 5: Solve for x
    x = 1,103,956,266,407.58/1,211,565.11
  6. Step 6: Final answer
    x = 911,181.96

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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.