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Finding the Fourth Proportional to 663,398.20, 995,097.30 and 612,076.60

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Solution

The fourth proportional to 663,398.20, 995,097.30 and 612,076.60 is: 918,114.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,398.20 : 995,097.30 = 612,076.60 : x
  2. Step 2: Convert to fraction form
    663,398.20/995,097.30 = 612,076.60/x
  3. Step 3: Cross multiply
    663,398.20x = 995,097.30 × 612,076.60
  4. Step 4: Simplify right side
    663,398.20x = 609,075,772,053.18
  5. Step 5: Solve for x
    x = 609,075,772,053.18/663,398.20
  6. Step 6: Final answer
    x = 918,114.90

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Similar ratio
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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.