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Finding the Fourth Proportional to 547,189.62, 755,435.79 and 417,106.86

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Solution

The fourth proportional to 547,189.62, 755,435.79 and 417,106.86 is: 575,846.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,189.62 : 755,435.79 = 417,106.86 : x
  2. Step 2: Convert to fraction form
    547,189.62/755,435.79 = 417,106.86/x
  3. Step 3: Cross multiply
    547,189.62x = 755,435.79 × 417,106.86
  4. Step 4: Simplify right side
    547,189.62x = 315,097,450,298.52
  5. Step 5: Solve for x
    x = 315,097,450,298.52/547,189.62
  6. Step 6: Final answer
    x = 575,846.91

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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.