Home / 860,218.92-1,185,351.39-665,443.44

Finding the Fourth Proportional to 860,218.92, 1,185,351.39 and 665,443.44

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Solution

The fourth proportional to 860,218.92, 1,185,351.39 and 665,443.44 is: 916,957.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,218.92 : 1,185,351.39 = 665,443.44 : x
  2. Step 2: Convert to fraction form
    860,218.92/1,185,351.39 = 665,443.44/x
  3. Step 3: Cross multiply
    860,218.92x = 1,185,351.39 × 665,443.44
  4. Step 4: Simplify right side
    860,218.92x = 788,784,306,570.38
  5. Step 5: Solve for x
    x = 788,784,306,570.38/860,218.92
  6. Step 6: Final answer
    x = 916,957.64

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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.