Home / 716,127.24-988,235.85-393,837.33

Finding the Fourth Proportional to 716,127.24, 988,235.85 and 393,837.33

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Solution

The fourth proportional to 716,127.24, 988,235.85 and 393,837.33 is: 543,484.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,127.24 : 988,235.85 = 393,837.33 : x
  2. Step 2: Convert to fraction form
    716,127.24/988,235.85 = 393,837.33/x
  3. Step 3: Cross multiply
    716,127.24x = 988,235.85 × 393,837.33
  4. Step 4: Simplify right side
    716,127.24x = 389,204,168,574.28
  5. Step 5: Solve for x
    x = 389,204,168,574.28/716,127.24
  6. Step 6: Final answer
    x = 543,484.66

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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.