Home / 716,336.85-988,547.18-394,071.46

Finding the Fourth Proportional to 716,336.85, 988,547.18 and 394,071.46

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Solution

The fourth proportional to 716,336.85, 988,547.18 and 394,071.46 is: 543,819.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,336.85 : 988,547.18 = 394,071.46 : x
  2. Step 2: Convert to fraction form
    716,336.85/988,547.18 = 394,071.46/x
  3. Step 3: Cross multiply
    716,336.85x = 988,547.18 × 394,071.46
  4. Step 4: Simplify right side
    716,336.85x = 389,558,232,972.85
  5. Step 5: Solve for x
    x = 389,558,232,972.85/716,336.85
  6. Step 6: Final answer
    x = 543,819.90

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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.