Home / 840,287.85-1,159,612.97-458,328.30

Finding the Fourth Proportional to 840,287.85, 1,159,612.97 and 458,328.30

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Solution

The fourth proportional to 840,287.85, 1,159,612.97 and 458,328.30 is: 632,501.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,287.85 : 1,159,612.97 = 458,328.30 : x
  2. Step 2: Convert to fraction form
    840,287.85/1,159,612.97 = 458,328.30/x
  3. Step 3: Cross multiply
    840,287.85x = 1,159,612.97 × 458,328.30
  4. Step 4: Simplify right side
    840,287.85x = 531,483,441,198.05
  5. Step 5: Solve for x
    x = 531,483,441,198.05/840,287.85
  6. Step 6: Final answer
    x = 632,501.64

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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.