Home / 891,083.60-1,336,625.40-260,061.20

Finding the Fourth Proportional to 891,083.60, 1,336,625.40 and 260,061.20

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Solution

The fourth proportional to 891,083.60, 1,336,625.40 and 260,061.20 is: 390,091.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,083.60 : 1,336,625.40 = 260,061.20 : x
  2. Step 2: Convert to fraction form
    891,083.60/1,336,625.40 = 260,061.20/x
  3. Step 3: Cross multiply
    891,083.60x = 1,336,625.40 × 260,061.20
  4. Step 4: Simplify right side
    891,083.60x = 347,604,405,474.48
  5. Step 5: Solve for x
    x = 347,604,405,474.48/891,083.60
  6. Step 6: Final answer
    x = 390,091.80

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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.