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Finding the Fourth Proportional to 496,312,781.40, 743,034,281.40 and 481,963,874.40

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Solution

The fourth proportional to 496,312,781.40, 743,034,281.40 and 481,963,874.40 is: 721,552,405.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,312,781.40 : 743,034,281.40 = 481,963,874.40 : x
  2. Step 2: Convert to fraction form
    496,312,781.40/743,034,281.40 = 481,963,874.40/x
  3. Step 3: Cross multiply
    496,312,781.40x = 743,034,281.40 × 481,963,874.40
  4. Step 4: Simplify right side
    496,312,781.40x = 358,115,681,075,563,840
  5. Step 5: Solve for x
    x = 358,115,681,075,563,840/496,312,781.40
  6. Step 6: Final answer
    x = 721,552,405.05

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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.