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Finding the Fourth Proportional to 522,328.74, 718,977.54 and 457,645.47

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Solution

The fourth proportional to 522,328.74, 718,977.54 and 457,645.47 is: 629,942.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,328.74 : 718,977.54 = 457,645.47 : x
  2. Step 2: Convert to fraction form
    522,328.74/718,977.54 = 457,645.47/x
  3. Step 3: Cross multiply
    522,328.74x = 718,977.54 × 457,645.47
  4. Step 4: Simplify right side
    522,328.74x = 329,036,814,212.74
  5. Step 5: Solve for x
    x = 329,036,814,212.74/522,328.74
  6. Step 6: Final answer
    x = 629,942.01

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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.