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Finding the Fourth Proportional to 291,031,446.30, 436,547,169.45 and 291,031,446.30

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Solution

The fourth proportional to 291,031,446.30, 436,547,169.45 and 291,031,446.30 is: 436,547,169.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,031,446.30 : 436,547,169.45 = 291,031,446.30 : x
  2. Step 2: Convert to fraction form
    291,031,446.30/436,547,169.45 = 291,031,446.30/x
  3. Step 3: Cross multiply
    291,031,446.30x = 436,547,169.45 × 291,031,446.30
  4. Step 4: Simplify right side
    291,031,446.30x = 127,048,954,103,204,672
  5. Step 5: Solve for x
    x = 127,048,954,103,204,672/291,031,446.30
  6. Step 6: Final answer
    x = 436,547,169.45

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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.