Home / 1,207,355.65-1,666,117.22-663,491.27

Finding the Fourth Proportional to 1,207,355.65, 1,666,117.22 and 663,491.27

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Solution

The fourth proportional to 1,207,355.65, 1,666,117.22 and 663,491.27 is: 915,599.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,355.65 : 1,666,117.22 = 663,491.27 : x
  2. Step 2: Convert to fraction form
    1,207,355.65/1,666,117.22 = 663,491.27/x
  3. Step 3: Cross multiply
    1,207,355.65x = 1,666,117.22 × 663,491.27
  4. Step 4: Simplify right side
    1,207,355.65x = 1,105,454,231,114.51
  5. Step 5: Solve for x
    x = 1,105,454,231,114.51/1,207,355.65
  6. Step 6: Final answer
    x = 915,599.50

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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.