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Finding the Fourth Proportional to 500,722.80, 751,005.64 and 163,760.72

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Solution

The fourth proportional to 500,722.80, 751,005.64 and 163,760.72 is: 245,615.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,722.80 : 751,005.64 = 163,760.72 : x
  2. Step 2: Convert to fraction form
    500,722.80/751,005.64 = 163,760.72/x
  3. Step 3: Cross multiply
    500,722.80x = 751,005.64 × 163,760.72
  4. Step 4: Simplify right side
    500,722.80x = 122,985,224,330.46
  5. Step 5: Solve for x
    x = 122,985,224,330.46/500,722.80
  6. Step 6: Final answer
    x = 245,615.39

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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.