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Finding the Third Proportional to 390,597,621.19 and 595,053,586.69

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Solution

The third proportional to 390,597,621.19 and 595,053,586.69 is: 906,530,792.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,597,621.19 : 595,053,586.69 = 595,053,586.69 : x
  2. Step 2: Convert to fraction form
    390,597,621.19/595,053,586.69 = 595,053,586.69/x
  3. Step 3: Cross multiply
    390,597,621.19x = 595,053,586.69 × 595,053,586.69
  4. Step 4: Simplify right side
    390,597,621.19x = 354,088,771,029,658,048
  5. Step 5: Solve for x
    x = 354,088,771,029,658,048/390,597,621.19
  6. Step 6: Final answer
    x = 906,530,792.36

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.