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Finding the Fourth Proportional to 605,087.10, 907,630.65 and 539,768.70

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Solution

The fourth proportional to 605,087.10, 907,630.65 and 539,768.70 is: 809,653.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,087.10 : 907,630.65 = 539,768.70 : x
  2. Step 2: Convert to fraction form
    605,087.10/907,630.65 = 539,768.70/x
  3. Step 3: Cross multiply
    605,087.10x = 907,630.65 × 539,768.70
  4. Step 4: Simplify right side
    605,087.10x = 489,910,616,030.66
  5. Step 5: Solve for x
    x = 489,910,616,030.66/605,087.10
  6. Step 6: Final answer
    x = 809,653.05

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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.