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Finding the Fourth Proportional to 339,277.10, 508,915.65 and 313,616.30

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Solution

The fourth proportional to 339,277.10, 508,915.65 and 313,616.30 is: 470,424.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,277.10 : 508,915.65 = 313,616.30 : x
  2. Step 2: Convert to fraction form
    339,277.10/508,915.65 = 313,616.30/x
  3. Step 3: Cross multiply
    339,277.10x = 508,915.65 × 313,616.30
  4. Step 4: Simplify right side
    339,277.10x = 159,604,243,165.10
  5. Step 5: Solve for x
    x = 159,604,243,165.10/339,277.10
  6. Step 6: Final answer
    x = 470,424.45

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1.5x scale

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.