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Finding the Fourth Proportional to 660,770.90, 926,945.50 and 660,770.90

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Solution

The fourth proportional to 660,770.90, 926,945.50 and 660,770.90 is: 926,945.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,770.90 : 926,945.50 = 660,770.90 : x
  2. Step 2: Convert to fraction form
    660,770.90/926,945.50 = 660,770.90/x
  3. Step 3: Cross multiply
    660,770.90x = 926,945.50 × 660,770.90
  4. Step 4: Simplify right side
    660,770.90x = 612,498,612,285.95
  5. Step 5: Solve for x
    x = 612,498,612,285.95/660,770.90
  6. Step 6: Final answer
    x = 926,945.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.