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Finding the Fourth Proportional to 439,186.76, 606,010.70 and 248,130.44

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Solution

The fourth proportional to 439,186.76, 606,010.70 and 248,130.44 is: 342,382.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,186.76 : 606,010.70 = 248,130.44 : x
  2. Step 2: Convert to fraction form
    439,186.76/606,010.70 = 248,130.44/x
  3. Step 3: Cross multiply
    439,186.76x = 606,010.70 × 248,130.44
  4. Step 4: Simplify right side
    439,186.76x = 150,369,697,365.00
  5. Step 5: Solve for x
    x = 150,369,697,365.00/439,186.76
  6. Step 6: Final answer
    x = 342,382.13

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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.