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Finding the Fourth Proportional to 593,879.80, 890,819.70 and 559,665.40

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Solution

The fourth proportional to 593,879.80, 890,819.70 and 559,665.40 is: 839,498.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,879.80 : 890,819.70 = 559,665.40 : x
  2. Step 2: Convert to fraction form
    593,879.80/890,819.70 = 559,665.40/x
  3. Step 3: Cross multiply
    593,879.80x = 890,819.70 × 559,665.40
  4. Step 4: Simplify right side
    593,879.80x = 498,560,963,728.38
  5. Step 5: Solve for x
    x = 498,560,963,728.38/593,879.80
  6. Step 6: Final answer
    x = 839,498.10

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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.