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Finding the Fourth Proportional to 469,079.91, 647,328.65 and 254,225.25

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Solution

The fourth proportional to 469,079.91, 647,328.65 and 254,225.25 is: 350,829.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,079.91 : 647,328.65 = 254,225.25 : x
  2. Step 2: Convert to fraction form
    469,079.91/647,328.65 = 254,225.25/x
  3. Step 3: Cross multiply
    469,079.91x = 647,328.65 × 254,225.25
  4. Step 4: Simplify right side
    469,079.91x = 164,567,286,607.29
  5. Step 5: Solve for x
    x = 164,567,286,607.29/469,079.91
  6. Step 6: Final answer
    x = 350,829.96

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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.