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Finding the Fourth Proportional to 478,044.01, 659,675.69 and 263,142.10

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Solution

The fourth proportional to 478,044.01, 659,675.69 and 263,142.10 is: 363,122.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,044.01 : 659,675.69 = 263,142.10 : x
  2. Step 2: Convert to fraction form
    478,044.01/659,675.69 = 263,142.10/x
  3. Step 3: Cross multiply
    478,044.01x = 659,675.69 × 263,142.10
  4. Step 4: Simplify right side
    478,044.01x = 173,588,448,361.39
  5. Step 5: Solve for x
    x = 173,588,448,361.39/478,044.01
  6. Step 6: Final answer
    x = 363,122.32

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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.