Home / 716,916.92-988,935.36-448,178.36

Finding the Fourth Proportional to 716,916.92, 988,935.36 and 448,178.36

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Solution

The fourth proportional to 716,916.92, 988,935.36 and 448,178.36 is: 618,229.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,916.92 : 988,935.36 = 448,178.36 : x
  2. Step 2: Convert to fraction form
    716,916.92/988,935.36 = 448,178.36/x
  3. Step 3: Cross multiply
    716,916.92x = 988,935.36 × 448,178.36
  4. Step 4: Simplify right side
    716,916.92x = 443,219,427,790.81
  5. Step 5: Solve for x
    x = 443,219,427,790.81/716,916.92
  6. Step 6: Final answer
    x = 618,229.83

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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.