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Finding the Fourth Proportional to 561,826.08, 775,130.07 and 319,937.13

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Solution

The fourth proportional to 561,826.08, 775,130.07 and 319,937.13 is: 441,405.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,826.08 : 775,130.07 = 319,937.13 : x
  2. Step 2: Convert to fraction form
    561,826.08/775,130.07 = 319,937.13/x
  3. Step 3: Cross multiply
    561,826.08x = 775,130.07 × 319,937.13
  4. Step 4: Simplify right side
    561,826.08x = 247,992,889,972.50
  5. Step 5: Solve for x
    x = 247,992,889,972.50/561,826.08
  6. Step 6: Final answer
    x = 441,405.09

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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.