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Finding the Fourth Proportional to 200,359,693.80, 300,539,540.70 and 200,359,693.80

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Solution

The fourth proportional to 200,359,693.80, 300,539,540.70 and 200,359,693.80 is: 300,539,540.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,359,693.80 : 300,539,540.70 = 200,359,693.80 : x
  2. Step 2: Convert to fraction form
    200,359,693.80/300,539,540.70 = 200,359,693.80/x
  3. Step 3: Cross multiply
    200,359,693.80x = 300,539,540.70 × 200,359,693.80
  4. Step 4: Simplify right side
    200,359,693.80x = 60,216,010,349,444,640
  5. Step 5: Solve for x
    x = 60,216,010,349,444,640/200,359,693.80
  6. Step 6: Final answer
    x = 300,539,540.70

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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.