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Finding the Fourth Proportional to 898,679,845.80, 1,348,019,768.70 and 745,498,866.60

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Solution

The fourth proportional to 898,679,845.80, 1,348,019,768.70 and 745,498,866.60 is: 1,118,248,299.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,679,845.80 : 1,348,019,768.70 = 745,498,866.60 : x
  2. Step 2: Convert to fraction form
    898,679,845.80/1,348,019,768.70 = 745,498,866.60/x
  3. Step 3: Cross multiply
    898,679,845.80x = 1,348,019,768.70 × 745,498,866.60
  4. Step 4: Simplify right side
    898,679,845.80x = 1,004,947,209,720,244,224
  5. Step 5: Solve for x
    x = 1,004,947,209,720,244,224/898,679,845.80
  6. Step 6: Final answer
    x = 1,118,248,299.90

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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.