Home / 822,853.14-1,135,080.07-478,650.34

Finding the Fourth Proportional to 822,853.14, 1,135,080.07 and 478,650.34

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Solution

The fourth proportional to 822,853.14, 1,135,080.07 and 478,650.34 is: 660,271.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,853.14 : 1,135,080.07 = 478,650.34 : x
  2. Step 2: Convert to fraction form
    822,853.14/1,135,080.07 = 478,650.34/x
  3. Step 3: Cross multiply
    822,853.14x = 1,135,080.07 × 478,650.34
  4. Step 4: Simplify right side
    822,853.14x = 543,306,461,432.72
  5. Step 5: Solve for x
    x = 543,306,461,432.72/822,853.14
  6. Step 6: Final answer
    x = 660,271.48

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.