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Finding the Fourth Proportional to 447,680.40, 671,520.60 and 346,203.60

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Solution

The fourth proportional to 447,680.40, 671,520.60 and 346,203.60 is: 519,305.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,680.40 : 671,520.60 = 346,203.60 : x
  2. Step 2: Convert to fraction form
    447,680.40/671,520.60 = 346,203.60/x
  3. Step 3: Cross multiply
    447,680.40x = 671,520.60 × 346,203.60
  4. Step 4: Simplify right side
    447,680.40x = 232,482,849,194.16
  5. Step 5: Solve for x
    x = 232,482,849,194.16/447,680.40
  6. Step 6: Final answer
    x = 519,305.40

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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.