Home / 1,272,468.38-1,756,039.95-691,730.57

Finding the Fourth Proportional to 1,272,468.38, 1,756,039.95 and 691,730.57

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Solution

The fourth proportional to 1,272,468.38, 1,756,039.95 and 691,730.57 is: 954,606.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,468.38 : 1,756,039.95 = 691,730.57 : x
  2. Step 2: Convert to fraction form
    1,272,468.38/1,756,039.95 = 691,730.57/x
  3. Step 3: Cross multiply
    1,272,468.38x = 1,756,039.95 × 691,730.57
  4. Step 4: Simplify right side
    1,272,468.38x = 1,214,706,506,776.07
  5. Step 5: Solve for x
    x = 1,214,706,506,776.07/1,272,468.38
  6. Step 6: Final answer
    x = 954,606.44

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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.