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Finding the Fourth Proportional to 615,552.80, 923,912.40 and 526,906.40

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Solution

The fourth proportional to 615,552.80, 923,912.40 and 526,906.40 is: 790,858.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,552.80 : 923,912.40 = 526,906.40 : x
  2. Step 2: Convert to fraction form
    615,552.80/923,912.40 = 526,906.40/x
  3. Step 3: Cross multiply
    615,552.80x = 923,912.40 × 526,906.40
  4. Step 4: Simplify right side
    615,552.80x = 486,815,356,599.36
  5. Step 5: Solve for x
    x = 486,815,356,599.36/615,552.80
  6. Step 6: Final answer
    x = 790,858.81

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1.5x scale

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.