Home / 868,011.10-1,300,979.85-447,070.30

Finding the Fourth Proportional to 868,011.10, 1,300,979.85 and 447,070.30

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Solution

The fourth proportional to 868,011.10, 1,300,979.85 and 447,070.30 is: 670,071.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,011.10 : 1,300,979.85 = 447,070.30 : x
  2. Step 2: Convert to fraction form
    868,011.10/1,300,979.85 = 447,070.30/x
  3. Step 3: Cross multiply
    868,011.10x = 1,300,979.85 × 447,070.30
  4. Step 4: Simplify right side
    868,011.10x = 581,629,451,833.46
  5. Step 5: Solve for x
    x = 581,629,451,833.46/868,011.10
  6. Step 6: Final answer
    x = 670,071.44

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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.