Home / 938,658.15-1,294,981.86-612,354.78

Finding the Fourth Proportional to 938,658.15, 1,294,981.86 and 612,354.78

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Solution

The fourth proportional to 938,658.15, 1,294,981.86 and 612,354.78 is: 844,810.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,658.15 : 1,294,981.86 = 612,354.78 : x
  2. Step 2: Convert to fraction form
    938,658.15/1,294,981.86 = 612,354.78/x
  3. Step 3: Cross multiply
    938,658.15x = 1,294,981.86 × 612,354.78
  4. Step 4: Simplify right side
    938,658.15x = 792,988,331,984.29
  5. Step 5: Solve for x
    x = 792,988,331,984.29/938,658.15
  6. Step 6: Final answer
    x = 844,810.58

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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.