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Finding the Third Proportional to 389,070.75 and 583,606.13

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Solution

The third proportional to 389,070.75 and 583,606.13 is: 875,409.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,070.75 : 583,606.13 = 583,606.13 : x
  2. Step 2: Convert to fraction form
    389,070.75/583,606.13 = 583,606.13/x
  3. Step 3: Cross multiply
    389,070.75x = 583,606.13 × 583,606.13
  4. Step 4: Simplify right side
    389,070.75x = 340,596,109,137.52
  5. Step 5: Solve for x
    x = 340,596,109,137.52/389,070.75
  6. Step 6: Final answer
    x = 875,409.19

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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.