Home / 860,325.59-1,185,497.78-665,549.96

Finding the Fourth Proportional to 860,325.59, 1,185,497.78 and 665,549.96

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Solution

The fourth proportional to 860,325.59, 1,185,497.78 and 665,549.96 is: 917,103.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,325.59 : 1,185,497.78 = 665,549.96 : x
  2. Step 2: Convert to fraction form
    860,325.59/1,185,497.78 = 665,549.96/x
  3. Step 3: Cross multiply
    860,325.59x = 1,185,497.78 × 665,549.96
  4. Step 4: Simplify right side
    860,325.59x = 789,007,990,803.85
  5. Step 5: Solve for x
    x = 789,007,990,803.85/860,325.59
  6. Step 6: Final answer
    x = 917,103.95

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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.