Home / 716,126.74-988,235.16-393,836.83

Finding the Fourth Proportional to 716,126.74, 988,235.16 and 393,836.83

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Solution

The fourth proportional to 716,126.74, 988,235.16 and 393,836.83 is: 543,483.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,126.74 : 988,235.16 = 393,836.83 : x
  2. Step 2: Convert to fraction form
    716,126.74/988,235.16 = 393,836.83/x
  3. Step 3: Cross multiply
    716,126.74x = 988,235.16 × 393,836.83
  4. Step 4: Simplify right side
    716,126.74x = 389,203,402,708.94
  5. Step 5: Solve for x
    x = 389,203,402,708.94/716,126.74
  6. Step 6: Final answer
    x = 543,483.97

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Double scale
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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.