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Finding the Fourth Proportional to 572,358.24, 789,890.16 and 317,713.68

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Solution

The fourth proportional to 572,358.24, 789,890.16 and 317,713.68 is: 438,464.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,358.24 : 789,890.16 = 317,713.68 : x
  2. Step 2: Convert to fraction form
    572,358.24/789,890.16 = 317,713.68/x
  3. Step 3: Cross multiply
    572,358.24x = 789,890.16 × 317,713.68
  4. Step 4: Simplify right side
    572,358.24x = 250,958,909,529.39
  5. Step 5: Solve for x
    x = 250,958,909,529.39/572,358.24
  6. Step 6: Final answer
    x = 438,464.74

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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.