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Finding the Fourth Proportional to 554,504.70, 831,178.17 and 402,334.14

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Solution

The fourth proportional to 554,504.70, 831,178.17 and 402,334.14 is: 603,081.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,504.70 : 831,178.17 = 402,334.14 : x
  2. Step 2: Convert to fraction form
    554,504.70/831,178.17 = 402,334.14/x
  3. Step 3: Cross multiply
    554,504.70x = 831,178.17 × 402,334.14
  4. Step 4: Simplify right side
    554,504.70x = 334,411,354,213.72
  5. Step 5: Solve for x
    x = 334,411,354,213.72/554,504.70
  6. Step 6: Final answer
    x = 603,081.19

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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.