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Finding the Fourth Proportional to 607,258.31, 909,890.46 and 207,681.08

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Solution

The fourth proportional to 607,258.31, 909,890.46 and 207,681.08 is: 311,180.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,258.31 : 909,890.46 = 207,681.08 : x
  2. Step 2: Convert to fraction form
    607,258.31/909,890.46 = 207,681.08/x
  3. Step 3: Cross multiply
    607,258.31x = 909,890.46 × 207,681.08
  4. Step 4: Simplify right side
    607,258.31x = 188,967,028,865.05
  5. Step 5: Solve for x
    x = 188,967,028,865.05/607,258.31
  6. Step 6: Final answer
    x = 311,180.64

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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.