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Finding the Fourth Proportional to 368,851.80, 553,277.70 and 325,549.20

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Solution

The fourth proportional to 368,851.80, 553,277.70 and 325,549.20 is: 488,323.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,851.80 : 553,277.70 = 325,549.20 : x
  2. Step 2: Convert to fraction form
    368,851.80/553,277.70 = 325,549.20/x
  3. Step 3: Cross multiply
    368,851.80x = 553,277.70 × 325,549.20
  4. Step 4: Simplify right side
    368,851.80x = 180,119,112,612.84
  5. Step 5: Solve for x
    x = 180,119,112,612.84/368,851.80
  6. Step 6: Final answer
    x = 488,323.80

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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.