Home / 891,083.80-1,336,625.70-260,061.40

Finding the Fourth Proportional to 891,083.80, 1,336,625.70 and 260,061.40

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Solution

The fourth proportional to 891,083.80, 1,336,625.70 and 260,061.40 is: 390,092.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,083.80 : 1,336,625.70 = 260,061.40 : x
  2. Step 2: Convert to fraction form
    891,083.80/1,336,625.70 = 260,061.40/x
  3. Step 3: Cross multiply
    891,083.80x = 1,336,625.70 × 260,061.40
  4. Step 4: Simplify right side
    891,083.80x = 347,604,750,817.98
  5. Step 5: Solve for x
    x = 347,604,750,817.98/891,083.80
  6. Step 6: Final answer
    x = 390,092.10

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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.