Home / 1,272,568.47-1,756,155.89-691,792.70

Finding the Fourth Proportional to 1,272,568.47, 1,756,155.89 and 691,792.70

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Solution

The fourth proportional to 1,272,568.47, 1,756,155.89 and 691,792.70 is: 954,680.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,568.47 : 1,756,155.89 = 691,792.70 : x
  2. Step 2: Convert to fraction form
    1,272,568.47/1,756,155.89 = 691,792.70/x
  3. Step 3: Cross multiply
    1,272,568.47x = 1,756,155.89 × 691,792.70
  4. Step 4: Simplify right side
    1,272,568.47x = 1,214,895,823,699.75
  5. Step 5: Solve for x
    x = 1,214,895,823,699.75/1,272,568.47
  6. Step 6: Final answer
    x = 954,680.12

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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.