Home / 1,191,007.29-1,643,600.10-647,143.11

Finding the Fourth Proportional to 1,191,007.29, 1,643,600.10 and 647,143.11

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Solution

The fourth proportional to 1,191,007.29, 1,643,600.10 and 647,143.11 is: 893,062.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,007.29 : 1,643,600.10 = 647,143.11 : x
  2. Step 2: Convert to fraction form
    1,191,007.29/1,643,600.10 = 647,143.11/x
  3. Step 3: Cross multiply
    1,191,007.29x = 1,643,600.10 × 647,143.11
  4. Step 4: Simplify right side
    1,191,007.29x = 1,063,644,475,875.53
  5. Step 5: Solve for x
    x = 1,063,644,475,875.53/1,191,007.29
  6. Step 6: Final answer
    x = 893,062.94

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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.