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Finding the Fourth Proportional to 437,029.80, 655,544.70 and 346,828.20

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Solution

The fourth proportional to 437,029.80, 655,544.70 and 346,828.20 is: 520,242.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,029.80 : 655,544.70 = 346,828.20 : x
  2. Step 2: Convert to fraction form
    437,029.80/655,544.70 = 346,828.20/x
  3. Step 3: Cross multiply
    437,029.80x = 655,544.70 × 346,828.20
  4. Step 4: Simplify right side
    437,029.80x = 227,361,388,320.54
  5. Step 5: Solve for x
    x = 227,361,388,320.54/437,029.80
  6. Step 6: Final answer
    x = 520,242.30

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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.