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Finding the Fourth Proportional to 922,775.40, 1,384,163.10 and 907,223.40

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Solution

The fourth proportional to 922,775.40, 1,384,163.10 and 907,223.40 is: 1,360,835.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,775.40 : 1,384,163.10 = 907,223.40 : x
  2. Step 2: Convert to fraction form
    922,775.40/1,384,163.10 = 907,223.40/x
  3. Step 3: Cross multiply
    922,775.40x = 1,384,163.10 × 907,223.40
  4. Step 4: Simplify right side
    922,775.40x = 1,255,745,153,736.54
  5. Step 5: Solve for x
    x = 1,255,745,153,736.54/922,775.40
  6. Step 6: Final answer
    x = 1,360,835.10

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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.