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Finding the Fourth Proportional to 447,790.40, 671,685.60 and 346,313.60

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Solution

The fourth proportional to 447,790.40, 671,685.60 and 346,313.60 is: 519,470.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,790.40 : 671,685.60 = 346,313.60 : x
  2. Step 2: Convert to fraction form
    447,790.40/671,685.60 = 346,313.60/x
  3. Step 3: Cross multiply
    447,790.40x = 671,685.60 × 346,313.60
  4. Step 4: Simplify right side
    447,790.40x = 232,613,858,204.16
  5. Step 5: Solve for x
    x = 232,613,858,204.16/447,790.40
  6. Step 6: Final answer
    x = 519,470.40

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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.