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Finding the Fourth Proportional to 524,196.60, 786,294.90 and 515,448.60

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Solution

The fourth proportional to 524,196.60, 786,294.90 and 515,448.60 is: 773,172.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,196.60 : 786,294.90 = 515,448.60 : x
  2. Step 2: Convert to fraction form
    524,196.60/786,294.90 = 515,448.60/x
  3. Step 3: Cross multiply
    524,196.60x = 786,294.90 × 515,448.60
  4. Step 4: Simplify right side
    524,196.60x = 405,294,605,392.14
  5. Step 5: Solve for x
    x = 405,294,605,392.14/524,196.60
  6. Step 6: Final answer
    x = 773,172.90

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Similar ratio
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1.5x scale

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.