Home / 828,816.74-1,243,432.01-289,080.77

Finding the Fourth Proportional to 828,816.74, 1,243,432.01 and 289,080.77

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Solution

The fourth proportional to 828,816.74, 1,243,432.01 and 289,080.77 is: 433,693.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,816.74 : 1,243,432.01 = 289,080.77 : x
  2. Step 2: Convert to fraction form
    828,816.74/1,243,432.01 = 289,080.77/x
  3. Step 3: Cross multiply
    828,816.74x = 1,243,432.01 × 289,080.77
  4. Step 4: Simplify right side
    828,816.74x = 359,452,275,230.88
  5. Step 5: Solve for x
    x = 359,452,275,230.88/828,816.74
  6. Step 6: Final answer
    x = 433,693.31

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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.