Home / 839,200.20-1,158,109.56-457,226.88

Finding the Fourth Proportional to 839,200.20, 1,158,109.56 and 457,226.88

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Solution

The fourth proportional to 839,200.20, 1,158,109.56 and 457,226.88 is: 630,980.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,200.20 : 1,158,109.56 = 457,226.88 : x
  2. Step 2: Convert to fraction form
    839,200.20/1,158,109.56 = 457,226.88/x
  3. Step 3: Cross multiply
    839,200.20x = 1,158,109.56 × 457,226.88
  4. Step 4: Simplify right side
    839,200.20x = 529,518,820,816.97
  5. Step 5: Solve for x
    x = 529,518,820,816.97/839,200.20
  6. Step 6: Final answer
    x = 630,980.33

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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.