Home / 828,999.80-1,243,499.70-577,057.40

Finding the Fourth Proportional to 828,999.80, 1,243,499.70 and 577,057.40

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Solution

The fourth proportional to 828,999.80, 1,243,499.70 and 577,057.40 is: 865,586.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,999.80 : 1,243,499.70 = 577,057.40 : x
  2. Step 2: Convert to fraction form
    828,999.80/1,243,499.70 = 577,057.40/x
  3. Step 3: Cross multiply
    828,999.80x = 1,243,499.70 × 577,057.40
  4. Step 4: Simplify right side
    828,999.80x = 717,570,703,782.78
  5. Step 5: Solve for x
    x = 717,570,703,782.78/828,999.80
  6. Step 6: Final answer
    x = 865,586.10

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Similar ratio
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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.