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Finding the Fourth Proportional to 607,034.40, 910,551.60 and 207,639.60

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Solution

The fourth proportional to 607,034.40, 910,551.60 and 207,639.60 is: 311,459.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,034.40 : 910,551.60 = 207,639.60 : x
  2. Step 2: Convert to fraction form
    607,034.40/910,551.60 = 207,639.60/x
  3. Step 3: Cross multiply
    607,034.40x = 910,551.60 × 207,639.60
  4. Step 4: Simplify right side
    607,034.40x = 189,066,570,003.36
  5. Step 5: Solve for x
    x = 189,066,570,003.36/607,034.40
  6. Step 6: Final answer
    x = 311,459.40

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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.