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Finding the Fourth Proportional to 622,891,990.30, 934,337,985.45 and 622,891,990.30

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Solution

The fourth proportional to 622,891,990.30, 934,337,985.45 and 622,891,990.30 is: 934,337,985.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,891,990.30 : 934,337,985.45 = 622,891,990.30 : x
  2. Step 2: Convert to fraction form
    622,891,990.30/934,337,985.45 = 622,891,990.30/x
  3. Step 3: Cross multiply
    622,891,990.30x = 934,337,985.45 × 622,891,990.30
  4. Step 4: Simplify right side
    622,891,990.30x = 581,991,647,369,842,944
  5. Step 5: Solve for x
    x = 581,991,647,369,842,944/622,891,990.30
  6. Step 6: Final answer
    x = 934,337,985.45

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Double scale
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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.