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Finding the Fourth Proportional to 318,756.36, 439,893.46 and 175,521.54

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Solution

The fourth proportional to 318,756.36, 439,893.46 and 175,521.54 is: 242,225.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,756.36 : 439,893.46 = 175,521.54 : x
  2. Step 2: Convert to fraction form
    318,756.36/439,893.46 = 175,521.54/x
  3. Step 3: Cross multiply
    318,756.36x = 439,893.46 × 175,521.54
  4. Step 4: Simplify right side
    318,756.36x = 77,210,777,535.13
  5. Step 5: Solve for x
    x = 77,210,777,535.13/318,756.36
  6. Step 6: Final answer
    x = 242,225.06

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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.