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Finding the Fourth Proportional to 533,136.98, 735,728.96 and 291,420.51

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Solution

The fourth proportional to 533,136.98, 735,728.96 and 291,420.51 is: 402,160.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,136.98 : 735,728.96 = 291,420.51 : x
  2. Step 2: Convert to fraction form
    533,136.98/735,728.96 = 291,420.51/x
  3. Step 3: Cross multiply
    533,136.98x = 735,728.96 × 291,420.51
  4. Step 4: Simplify right side
    533,136.98x = 214,406,509,473.52
  5. Step 5: Solve for x
    x = 214,406,509,473.52/533,136.98
  6. Step 6: Final answer
    x = 402,160.27

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.