Home / 828,987.80-1,243,481.70-577,045.40

Finding the Fourth Proportional to 828,987.80, 1,243,481.70 and 577,045.40

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Solution

The fourth proportional to 828,987.80, 1,243,481.70 and 577,045.40 is: 865,568.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,987.80 : 1,243,481.70 = 577,045.40 : x
  2. Step 2: Convert to fraction form
    828,987.80/1,243,481.70 = 577,045.40/x
  3. Step 3: Cross multiply
    828,987.80x = 1,243,481.70 × 577,045.40
  4. Step 4: Simplify right side
    828,987.80x = 717,545,394,969.18
  5. Step 5: Solve for x
    x = 717,545,394,969.18/828,987.80
  6. Step 6: Final answer
    x = 865,568.10

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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.