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Finding the Fourth Proportional to 536,786.65, 740,770.53 and 291,771.98

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Solution

The fourth proportional to 536,786.65, 740,770.53 and 291,771.98 is: 402,648.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,786.65 : 740,770.53 = 291,771.98 : x
  2. Step 2: Convert to fraction form
    536,786.65/740,770.53 = 291,771.98/x
  3. Step 3: Cross multiply
    536,786.65x = 740,770.53 × 291,771.98
  4. Step 4: Simplify right side
    536,786.65x = 216,136,084,263.75
  5. Step 5: Solve for x
    x = 216,136,084,263.75/536,786.65
  6. Step 6: Final answer
    x = 402,648.02

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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.