Home / 716,227.46-988,412.60-393,946.02

Finding the Fourth Proportional to 716,227.46, 988,412.60 and 393,946.02

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Solution

The fourth proportional to 716,227.46, 988,412.60 and 393,946.02 is: 543,655.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,227.46 : 988,412.60 = 393,946.02 : x
  2. Step 2: Convert to fraction form
    716,227.46/988,412.60 = 393,946.02/x
  3. Step 3: Cross multiply
    716,227.46x = 988,412.60 × 393,946.02
  4. Step 4: Simplify right side
    716,227.46x = 389,381,208,374.79
  5. Step 5: Solve for x
    x = 389,381,208,374.79/716,227.46
  6. Step 6: Final answer
    x = 543,655.79

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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.