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Finding the Fourth Proportional to 507,290.13, 760,985.55 and 187,525.80

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Solution

The fourth proportional to 507,290.13, 760,985.55 and 187,525.80 is: 281,307.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,290.13 : 760,985.55 = 187,525.80 : x
  2. Step 2: Convert to fraction form
    507,290.13/760,985.55 = 187,525.80/x
  3. Step 3: Cross multiply
    507,290.13x = 760,985.55 × 187,525.80
  4. Step 4: Simplify right side
    507,290.13x = 142,704,424,052.19
  5. Step 5: Solve for x
    x = 142,704,424,052.19/507,290.13
  6. Step 6: Final answer
    x = 281,307.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.