Home / 1,289,338.80-1,934,008.20-342,805.20

Finding the Fourth Proportional to 1,289,338.80, 1,934,008.20 and 342,805.20

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Solution

The fourth proportional to 1,289,338.80, 1,934,008.20 and 342,805.20 is: 514,207.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,338.80 : 1,934,008.20 = 342,805.20 : x
  2. Step 2: Convert to fraction form
    1,289,338.80/1,934,008.20 = 342,805.20/x
  3. Step 3: Cross multiply
    1,289,338.80x = 1,934,008.20 × 342,805.20
  4. Step 4: Simplify right side
    1,289,338.80x = 662,988,067,802.64
  5. Step 5: Solve for x
    x = 662,988,067,802.64/1,289,338.80
  6. Step 6: Final answer
    x = 514,207.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.