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Finding the Fourth Proportional to 604,328.40, 905,180.40 and 368,132.40

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Solution

The fourth proportional to 604,328.40, 905,180.40 and 368,132.40 is: 551,399.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,328.40 : 905,180.40 = 368,132.40 : x
  2. Step 2: Convert to fraction form
    604,328.40/905,180.40 = 368,132.40/x
  3. Step 3: Cross multiply
    604,328.40x = 905,180.40 × 368,132.40
  4. Step 4: Simplify right side
    604,328.40x = 333,226,233,084.96
  5. Step 5: Solve for x
    x = 333,226,233,084.96/604,328.40
  6. Step 6: Final answer
    x = 551,399.26

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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.