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Finding the Fourth Proportional to 201,213,612.90, 301,820,419.35 and 201,213,612.90

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Solution

The fourth proportional to 201,213,612.90, 301,820,419.35 and 201,213,612.90 is: 301,820,419.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,213,612.90 : 301,820,419.35 = 201,213,612.90 : x
  2. Step 2: Convert to fraction form
    201,213,612.90/301,820,419.35 = 201,213,612.90/x
  3. Step 3: Cross multiply
    201,213,612.90x = 301,820,419.35 × 201,213,612.90
  4. Step 4: Simplify right side
    201,213,612.90x = 60,730,377,024,406,576
  5. Step 5: Solve for x
    x = 60,730,377,024,406,576/201,213,612.90
  6. Step 6: Final answer
    x = 301,820,419.35

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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.