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Finding the Fourth Proportional to 723,492.53, 1,085,394.32 and 243,768

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Solution

The fourth proportional to 723,492.53, 1,085,394.32 and 243,768 is: 365,704.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,492.53 : 1,085,394.32 = 243,768 : x
  2. Step 2: Convert to fraction form
    723,492.53/1,085,394.32 = 243,768/x
  3. Step 3: Cross multiply
    723,492.53x = 1,085,394.32 × 243,768
  4. Step 4: Simplify right side
    723,492.53x = 264,584,401,378.92
  5. Step 5: Solve for x
    x = 264,584,401,378.92/723,492.53
  6. Step 6: Final answer
    x = 365,704.40

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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.