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Finding the Fourth Proportional to 441,379,873.60, 662,069,810.40 and 392,912,454.40

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Solution

The fourth proportional to 441,379,873.60, 662,069,810.40 and 392,912,454.40 is: 589,368,681.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,379,873.60 : 662,069,810.40 = 392,912,454.40 : x
  2. Step 2: Convert to fraction form
    441,379,873.60/662,069,810.40 = 392,912,454.40/x
  3. Step 3: Cross multiply
    441,379,873.60x = 662,069,810.40 × 392,912,454.40
  4. Step 4: Simplify right side
    441,379,873.60x = 260,135,474,188,406,624
  5. Step 5: Solve for x
    x = 260,135,474,188,406,624/441,379,873.60
  6. Step 6: Final answer
    x = 589,368,681.60

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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.