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Finding the Fourth Proportional to 633,358.98, 874,093.28 and 346,920.30

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Solution

The fourth proportional to 633,358.98, 874,093.28 and 346,920.30 is: 478,781.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,358.98 : 874,093.28 = 346,920.30 : x
  2. Step 2: Convert to fraction form
    633,358.98/874,093.28 = 346,920.30/x
  3. Step 3: Cross multiply
    633,358.98x = 874,093.28 × 346,920.30
  4. Step 4: Simplify right side
    633,358.98x = 303,240,701,190.98
  5. Step 5: Solve for x
    x = 303,240,701,190.98/633,358.98
  6. Step 6: Final answer
    x = 478,781.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.