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Finding the Fourth Proportional to 852,724,845.20, 1,279,087,267.80 and 852,724,845.20

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Solution

The fourth proportional to 852,724,845.20, 1,279,087,267.80 and 852,724,845.20 is: 1,279,087,267.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,724,845.20 : 1,279,087,267.80 = 852,724,845.20 : x
  2. Step 2: Convert to fraction form
    852,724,845.20/1,279,087,267.80 = 852,724,845.20/x
  3. Step 3: Cross multiply
    852,724,845.20x = 1,279,087,267.80 × 852,724,845.20
  4. Step 4: Simplify right side
    852,724,845.20x = 1,090,709,492,432,045,952
  5. Step 5: Solve for x
    x = 1,090,709,492,432,045,952/852,724,845.20
  6. Step 6: Final answer
    x = 1,279,087,267.80

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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.