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Finding the Fourth Proportional to 308,925.20, 463,679.40 and 190,827.20

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Solution

The fourth proportional to 308,925.20, 463,679.40 and 190,827.20 is: 286,420.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,925.20 : 463,679.40 = 190,827.20 : x
  2. Step 2: Convert to fraction form
    308,925.20/463,679.40 = 190,827.20/x
  3. Step 3: Cross multiply
    308,925.20x = 463,679.40 × 190,827.20
  4. Step 4: Simplify right side
    308,925.20x = 88,482,641,599.68
  5. Step 5: Solve for x
    x = 88,482,641,599.68/308,925.20
  6. Step 6: Final answer
    x = 286,420.93

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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.