Home / 838,513.31-1,157,123.07-465,974.96

Finding the Fourth Proportional to 838,513.31, 1,157,123.07 and 465,974.96

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Solution

The fourth proportional to 838,513.31, 1,157,123.07 and 465,974.96 is: 643,031.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,513.31 : 1,157,123.07 = 465,974.96 : x
  2. Step 2: Convert to fraction form
    838,513.31/1,157,123.07 = 465,974.96/x
  3. Step 3: Cross multiply
    838,513.31x = 1,157,123.07 × 465,974.96
  4. Step 4: Simplify right side
    838,513.31x = 539,190,370,472.71
  5. Step 5: Solve for x
    x = 539,190,370,472.71/838,513.31
  6. Step 6: Final answer
    x = 643,031.38

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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.