Home / 867,009.90-1,300,514.85-548,145.30

Finding the Fourth Proportional to 867,009.90, 1,300,514.85 and 548,145.30

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Solution

The fourth proportional to 867,009.90, 1,300,514.85 and 548,145.30 is: 822,217.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,009.90 : 1,300,514.85 = 548,145.30 : x
  2. Step 2: Convert to fraction form
    867,009.90/1,300,514.85 = 548,145.30/x
  3. Step 3: Cross multiply
    867,009.90x = 1,300,514.85 × 548,145.30
  4. Step 4: Simplify right side
    867,009.90x = 712,871,102,607.71
  5. Step 5: Solve for x
    x = 712,871,102,607.71/867,009.90
  6. Step 6: Final answer
    x = 822,217.95

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Double scale
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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.