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Finding the Third Proportional to 393,431.63 and 607,582.13

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Solution

The third proportional to 393,431.63 and 607,582.13 is: 938,297.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,431.63 : 607,582.13 = 607,582.13 : x
  2. Step 2: Convert to fraction form
    393,431.63/607,582.13 = 607,582.13/x
  3. Step 3: Cross multiply
    393,431.63x = 607,582.13 × 607,582.13
  4. Step 4: Simplify right side
    393,431.63x = 369,156,038,619.52
  5. Step 5: Solve for x
    x = 369,156,038,619.52/393,431.63
  6. Step 6: Final answer
    x = 938,297.83

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.