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Finding the Fourth Proportional to 879,387,744.40, 1,318,683,485.40 and 333,948,000.40

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Solution

The fourth proportional to 879,387,744.40, 1,318,683,485.40 and 333,948,000.40 is: 500,770,810.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,387,744.40 : 1,318,683,485.40 = 333,948,000.40 : x
  2. Step 2: Convert to fraction form
    879,387,744.40/1,318,683,485.40 = 333,948,000.40/x
  3. Step 3: Cross multiply
    879,387,744.40x = 1,318,683,485.40 × 333,948,000.40
  4. Step 4: Simplify right side
    879,387,744.40x = 440,371,713,109,832,576
  5. Step 5: Solve for x
    x = 440,371,713,109,832,576/879,387,744.40
  6. Step 6: Final answer
    x = 500,770,810.05

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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.