Home / 1,221,403.29-1,685,545.88-670,115.31

Finding the Fourth Proportional to 1,221,403.29, 1,685,545.88 and 670,115.31

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Solution

The fourth proportional to 1,221,403.29, 1,685,545.88 and 670,115.31 is: 924,764.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,403.29 : 1,685,545.88 = 670,115.31 : x
  2. Step 2: Convert to fraction form
    1,221,403.29/1,685,545.88 = 670,115.31/x
  3. Step 3: Cross multiply
    1,221,403.29x = 1,685,545.88 × 670,115.31
  4. Step 4: Simplify right side
    1,221,403.29x = 1,129,510,096,544.85
  5. Step 5: Solve for x
    x = 1,129,510,096,544.85/1,221,403.29
  6. Step 6: Final answer
    x = 924,764.25

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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.