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Finding the Fourth Proportional to 315,590.56, 473,390.04 and 105,228.60

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Solution

The fourth proportional to 315,590.56, 473,390.04 and 105,228.60 is: 157,844.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,590.56 : 473,390.04 = 105,228.60 : x
  2. Step 2: Convert to fraction form
    315,590.56/473,390.04 = 105,228.60/x
  3. Step 3: Cross multiply
    315,590.56x = 473,390.04 × 105,228.60
  4. Step 4: Simplify right side
    315,590.56x = 49,814,171,163.14
  5. Step 5: Solve for x
    x = 49,814,171,163.14/315,590.56
  6. Step 6: Final answer
    x = 157,844.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.