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Finding the Fourth Proportional to 607,535.37, 837,770.78 and 521,778.31

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Solution

The fourth proportional to 607,535.37, 837,770.78 and 521,778.31 is: 719,514.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,535.37 : 837,770.78 = 521,778.31 : x
  2. Step 2: Convert to fraction form
    607,535.37/837,770.78 = 521,778.31/x
  3. Step 3: Cross multiply
    607,535.37x = 837,770.78 × 521,778.31
  4. Step 4: Simplify right side
    607,535.37x = 437,130,620,965.80
  5. Step 5: Solve for x
    x = 437,130,620,965.80/607,535.37
  6. Step 6: Final answer
    x = 719,514.69

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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.