Home / 857,240.57-1,286,074.67-605,013.72

Finding the Fourth Proportional to 857,240.57, 1,286,074.67 and 605,013.72

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Solution

The fourth proportional to 857,240.57, 1,286,074.67 and 605,013.72 is: 907,671.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,240.57 : 1,286,074.67 = 605,013.72 : x
  2. Step 2: Convert to fraction form
    857,240.57/1,286,074.67 = 605,013.72/x
  3. Step 3: Cross multiply
    857,240.57x = 1,286,074.67 × 605,013.72
  4. Step 4: Simplify right side
    857,240.57x = 778,092,817,269.40
  5. Step 5: Solve for x
    x = 778,092,817,269.40/857,240.57
  6. Step 6: Final answer
    x = 907,671.49

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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.