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Finding the Fourth Proportional to 887,258.60, 1,330,887.90 and 607,322.60

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Solution

The fourth proportional to 887,258.60, 1,330,887.90 and 607,322.60 is: 910,983.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,258.60 : 1,330,887.90 = 607,322.60 : x
  2. Step 2: Convert to fraction form
    887,258.60/1,330,887.90 = 607,322.60/x
  3. Step 3: Cross multiply
    887,258.60x = 1,330,887.90 × 607,322.60
  4. Step 4: Simplify right side
    887,258.60x = 808,278,299,736.54
  5. Step 5: Solve for x
    x = 808,278,299,736.54/887,258.60
  6. Step 6: Final answer
    x = 910,983.90

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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.