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Finding the Fourth Proportional to 591,758.85, 815,985 and 376,623.66

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Solution

The fourth proportional to 591,758.85, 815,985 and 376,623.66 is: 519,331.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,758.85 : 815,985 = 376,623.66 : x
  2. Step 2: Convert to fraction form
    591,758.85/815,985 = 376,623.66/x
  3. Step 3: Cross multiply
    591,758.85x = 815,985 × 376,623.66
  4. Step 4: Simplify right side
    591,758.85x = 307,319,257,205.10
  5. Step 5: Solve for x
    x = 307,319,257,205.10/591,758.85
  6. Step 6: Final answer
    x = 519,331.92

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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.