Home / 1,225,989.41-1,691,838.86-709,765.16

Finding the Fourth Proportional to 1,225,989.41, 1,691,838.86 and 709,765.16

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Solution

The fourth proportional to 1,225,989.41, 1,691,838.86 and 709,765.16 is: 979,460.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,989.41 : 1,691,838.86 = 709,765.16 : x
  2. Step 2: Convert to fraction form
    1,225,989.41/1,691,838.86 = 709,765.16/x
  3. Step 3: Cross multiply
    1,225,989.41x = 1,691,838.86 × 709,765.16
  4. Step 4: Simplify right side
    1,225,989.41x = 1,200,808,267,154.10
  5. Step 5: Solve for x
    x = 1,200,808,267,154.10/1,225,989.41
  6. Step 6: Final answer
    x = 979,460.56

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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.