Home / 1,191,171.42-1,643,811.18-647,296.92

Finding the Fourth Proportional to 1,191,171.42, 1,643,811.18 and 647,296.92

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Solution

The fourth proportional to 1,191,171.42, 1,643,811.18 and 647,296.92 is: 893,266.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,171.42 : 1,643,811.18 = 647,296.92 : x
  2. Step 2: Convert to fraction form
    1,191,171.42/1,643,811.18 = 647,296.92/x
  3. Step 3: Cross multiply
    1,191,171.42x = 1,643,811.18 × 647,296.92
  4. Step 4: Simplify right side
    1,191,171.42x = 1,064,033,913,875.57
  5. Step 5: Solve for x
    x = 1,064,033,913,875.57/1,191,171.42
  6. Step 6: Final answer
    x = 893,266.83

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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.