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Finding the Fourth Proportional to 607,133.16, 910,672.68 and 207,809.64

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Solution

The fourth proportional to 607,133.16, 910,672.68 and 207,809.64 is: 311,705.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,133.16 : 910,672.68 = 207,809.64 : x
  2. Step 2: Convert to fraction form
    607,133.16/910,672.68 = 207,809.64/x
  3. Step 3: Cross multiply
    607,133.16x = 910,672.68 × 207,809.64
  4. Step 4: Simplify right side
    607,133.16x = 189,246,561,788.64
  5. Step 5: Solve for x
    x = 189,246,561,788.64/607,133.16
  6. Step 6: Final answer
    x = 311,705.20

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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.