Home / 716,124.60-988,232.24-393,834.72

Finding the Fourth Proportional to 716,124.60, 988,232.24 and 393,834.72

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Solution

The fourth proportional to 716,124.60, 988,232.24 and 393,834.72 is: 543,481.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,124.60 : 988,232.24 = 393,834.72 : x
  2. Step 2: Convert to fraction form
    716,124.60/988,232.24 = 393,834.72/x
  3. Step 3: Cross multiply
    716,124.60x = 988,232.24 × 393,834.72
  4. Step 4: Simplify right side
    716,124.60x = 389,200,167,535.37
  5. Step 5: Solve for x
    x = 389,200,167,535.37/716,124.60
  6. Step 6: Final answer
    x = 543,481.08

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1.5x scale

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.