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Finding the Fourth Proportional to 441,347.94, 609,128.10 and 250,320.78

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Solution

The fourth proportional to 441,347.94, 609,128.10 and 250,320.78 is: 345,481.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,347.94 : 609,128.10 = 250,320.78 : x
  2. Step 2: Convert to fraction form
    441,347.94/609,128.10 = 250,320.78/x
  3. Step 3: Cross multiply
    441,347.94x = 609,128.10 × 250,320.78
  4. Step 4: Simplify right side
    441,347.94x = 152,477,421,111.92
  5. Step 5: Solve for x
    x = 152,477,421,111.92/441,347.94
  6. Step 6: Final answer
    x = 345,481.21

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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.