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Finding the Fourth Proportional to 918,181,844.55, 1,377,272,766.83 and 918,181,844.55

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Solution

The fourth proportional to 918,181,844.55, 1,377,272,766.83 and 918,181,844.55 is: 1,377,272,766.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,181,844.55 : 1,377,272,766.83 = 918,181,844.55 : x
  2. Step 2: Convert to fraction form
    918,181,844.55/1,377,272,766.83 = 918,181,844.55/x
  3. Step 3: Cross multiply
    918,181,844.55x = 1,377,272,766.83 × 918,181,844.55
  4. Step 4: Simplify right side
    918,181,844.55x = 1,264,586,849,491,860,480
  5. Step 5: Solve for x
    x = 1,264,586,849,491,860,480/918,181,844.55
  6. Step 6: Final answer
    x = 1,377,272,766.83

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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.