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Finding the Fourth Proportional to 547,593.50, 755,681.66 and 305,886.26

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Solution

The fourth proportional to 547,593.50, 755,681.66 and 305,886.26 is: 422,124.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,593.50 : 755,681.66 = 305,886.26 : x
  2. Step 2: Convert to fraction form
    547,593.50/755,681.66 = 305,886.26/x
  3. Step 3: Cross multiply
    547,593.50x = 755,681.66 × 305,886.26
  4. Step 4: Simplify right side
    547,593.50x = 231,152,631,420.15
  5. Step 5: Solve for x
    x = 231,152,631,420.15/547,593.50
  6. Step 6: Final answer
    x = 422,124.50

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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.