Home / 291,484.80-402,065.04-200,683.12

Finding the Fourth Proportional to 291,484.80, 402,065.04 and 200,683.12

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Solution

The fourth proportional to 291,484.80, 402,065.04 and 200,683.12 is: 276,816.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,484.80 : 402,065.04 = 200,683.12 : x
  2. Step 2: Convert to fraction form
    291,484.80/402,065.04 = 200,683.12/x
  3. Step 3: Cross multiply
    291,484.80x = 402,065.04 × 200,683.12
  4. Step 4: Simplify right side
    291,484.80x = 80,687,666,670.12
  5. Step 5: Solve for x
    x = 80,687,666,670.12/291,484.80
  6. Step 6: Final answer
    x = 276,816.04

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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.