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Finding the Fourth Proportional to 440,018.76, 607,225.74 and 238,814.76

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Solution

The fourth proportional to 440,018.76, 607,225.74 and 238,814.76 is: 329,564.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,018.76 : 607,225.74 = 238,814.76 : x
  2. Step 2: Convert to fraction form
    440,018.76/607,225.74 = 238,814.76/x
  3. Step 3: Cross multiply
    440,018.76x = 607,225.74 × 238,814.76
  4. Step 4: Simplify right side
    440,018.76x = 145,014,469,363.92
  5. Step 5: Solve for x
    x = 145,014,469,363.92/440,018.76
  6. Step 6: Final answer
    x = 329,564.29

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Half scale
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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.