Home / 718,434.81-991,506.56-412,551.27

Finding the Fourth Proportional to 718,434.81, 991,506.56 and 412,551.27

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Solution

The fourth proportional to 718,434.81, 991,506.56 and 412,551.27 is: 569,358.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,434.81 : 991,506.56 = 412,551.27 : x
  2. Step 2: Convert to fraction form
    718,434.81/991,506.56 = 412,551.27/x
  3. Step 3: Cross multiply
    718,434.81x = 991,506.56 × 412,551.27
  4. Step 4: Simplify right side
    718,434.81x = 409,047,288,478.58
  5. Step 5: Solve for x
    x = 409,047,288,478.58/718,434.81
  6. Step 6: Final answer
    x = 569,358.95

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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.