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Finding the Fourth Proportional to 1,260,513,774.04, 1,739,799,245.82 and 739,160,967.64

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Solution

The fourth proportional to 1,260,513,774.04, 1,739,799,245.82 and 739,160,967.64 is: 1,020,212,329.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,513,774.04 : 1,739,799,245.82 = 739,160,967.64 : x
  2. Step 2: Convert to fraction form
    1,260,513,774.04/1,739,799,245.82 = 739,160,967.64/x
  3. Step 3: Cross multiply
    1,260,513,774.04x = 1,739,799,245.82 × 739,160,967.64
  4. Step 4: Simplify right side
    1,260,513,774.04x = 1,285,991,694,039,653,376
  5. Step 5: Solve for x
    x = 1,285,991,694,039,653,376/1,260,513,774.04
  6. Step 6: Final answer
    x = 1,020,212,329.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.