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Finding the Fourth Proportional to 469,995.98, 648,595.28 and 255,136.20

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Solution

The fourth proportional to 469,995.98, 648,595.28 and 255,136.20 is: 352,088.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,995.98 : 648,595.28 = 255,136.20 : x
  2. Step 2: Convert to fraction form
    469,995.98/648,595.28 = 255,136.20/x
  3. Step 3: Cross multiply
    469,995.98x = 648,595.28 × 255,136.20
  4. Step 4: Simplify right side
    469,995.98x = 165,480,135,077.14
  5. Step 5: Solve for x
    x = 165,480,135,077.14/469,995.98
  6. Step 6: Final answer
    x = 352,088.41

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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.