Home / 657,553.95-985,784.18-278,765.55

Finding the Fourth Proportional to 657,553.95, 985,784.18 and 278,765.55

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Solution

The fourth proportional to 657,553.95, 985,784.18 and 278,765.55 is: 417,916.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,553.95 : 985,784.18 = 278,765.55 : x
  2. Step 2: Convert to fraction form
    657,553.95/985,784.18 = 278,765.55/x
  3. Step 3: Cross multiply
    657,553.95x = 985,784.18 × 278,765.55
  4. Step 4: Simplify right side
    657,553.95x = 274,802,667,725.17
  5. Step 5: Solve for x
    x = 274,802,667,725.17/657,553.95
  6. Step 6: Final answer
    x = 417,916.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.