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Finding the Fourth Proportional to 480,040.80, 720,061.20 and 368,066.40

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Solution

The fourth proportional to 480,040.80, 720,061.20 and 368,066.40 is: 552,099.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,040.80 : 720,061.20 = 368,066.40 : x
  2. Step 2: Convert to fraction form
    480,040.80/720,061.20 = 368,066.40/x
  3. Step 3: Cross multiply
    480,040.80x = 720,061.20 × 368,066.40
  4. Step 4: Simplify right side
    480,040.80x = 265,030,333,663.68
  5. Step 5: Solve for x
    x = 265,030,333,663.68/480,040.80
  6. Step 6: Final answer
    x = 552,099.60

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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.