Home / 831,981.06-1,248,158.28-263,396.16

Finding the Fourth Proportional to 831,981.06, 1,248,158.28 and 263,396.16

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Solution

The fourth proportional to 831,981.06, 1,248,158.28 and 263,396.16 is: 395,153.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,981.06 : 1,248,158.28 = 263,396.16 : x
  2. Step 2: Convert to fraction form
    831,981.06/1,248,158.28 = 263,396.16/x
  3. Step 3: Cross multiply
    831,981.06x = 1,248,158.28 × 263,396.16
  4. Step 4: Simplify right side
    831,981.06x = 328,760,098,024.21
  5. Step 5: Solve for x
    x = 328,760,098,024.21/831,981.06
  6. Step 6: Final answer
    x = 395,153.34

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Double scale
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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.