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Finding the Fourth Proportional to 440,179.16, 607,449.78 and 258,898.76

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Solution

The fourth proportional to 440,179.16, 607,449.78 and 258,898.76 is: 357,281.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,179.16 : 607,449.78 = 258,898.76 : x
  2. Step 2: Convert to fraction form
    440,179.16/607,449.78 = 258,898.76/x
  3. Step 3: Cross multiply
    440,179.16x = 607,449.78 × 258,898.76
  4. Step 4: Simplify right side
    440,179.16x = 157,267,994,804.27
  5. Step 5: Solve for x
    x = 157,267,994,804.27/440,179.16
  6. Step 6: Final answer
    x = 357,281.78

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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.