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Finding the Fourth Proportional to 607,811.10, 910,513.80 and 533,015.70

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Solution

The fourth proportional to 607,811.10, 910,513.80 and 533,015.70 is: 798,468.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,811.10 : 910,513.80 = 533,015.70 : x
  2. Step 2: Convert to fraction form
    607,811.10/910,513.80 = 533,015.70/x
  3. Step 3: Cross multiply
    607,811.10x = 910,513.80 × 533,015.70
  4. Step 4: Simplify right side
    607,811.10x = 485,318,150,466.66
  5. Step 5: Solve for x
    x = 485,318,150,466.66/607,811.10
  6. Step 6: Final answer
    x = 798,468.72

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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.