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Finding the Fourth Proportional to 623,570,134.20, 874,431,460.20 and 623,570,134.20

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Solution

The fourth proportional to 623,570,134.20, 874,431,460.20 and 623,570,134.20 is: 874,431,460.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,570,134.20 : 874,431,460.20 = 623,570,134.20 : x
  2. Step 2: Convert to fraction form
    623,570,134.20/874,431,460.20 = 623,570,134.20/x
  3. Step 3: Cross multiply
    623,570,134.20x = 874,431,460.20 × 623,570,134.20
  4. Step 4: Simplify right side
    623,570,134.20x = 545,269,342,985,616,000
  5. Step 5: Solve for x
    x = 545,269,342,985,616,000/623,570,134.20
  6. Step 6: Final answer
    x = 874,431,460.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.