Home / 716,786.32-988,753.68-448,047.76

Finding the Fourth Proportional to 716,786.32, 988,753.68 and 448,047.76

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Solution

The fourth proportional to 716,786.32, 988,753.68 and 448,047.76 is: 618,048.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,786.32 : 988,753.68 = 448,047.76 : x
  2. Step 2: Convert to fraction form
    716,786.32/988,753.68 = 448,047.76/x
  3. Step 3: Cross multiply
    716,786.32x = 988,753.68 × 448,047.76
  4. Step 4: Simplify right side
    716,786.32x = 443,008,871,515.76
  5. Step 5: Solve for x
    x = 443,008,871,515.76/716,786.32
  6. Step 6: Final answer
    x = 618,048.73

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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.