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Finding the Fourth Proportional to 607,396.59, 910,095.20 and 207,819.00

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Solution

The fourth proportional to 607,396.59, 910,095.20 and 207,819.00 is: 311,386.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,396.59 : 910,095.20 = 207,819.00 : x
  2. Step 2: Convert to fraction form
    607,396.59/910,095.20 = 207,819.00/x
  3. Step 3: Cross multiply
    607,396.59x = 910,095.20 × 207,819.00
  4. Step 4: Simplify right side
    607,396.59x = 189,135,069,818.32
  5. Step 5: Solve for x
    x = 189,135,069,818.32/607,396.59
  6. Step 6: Final answer
    x = 311,386.46

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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.