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Finding the Third Proportional to 500,306 and 749,090

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Solution

The third proportional to 500,306 and 749,090 is: 1,121,585.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,306 : 749,090 = 749,090 : x
  2. Step 2: Convert to fraction form
    500,306/749,090 = 749,090/x
  3. Step 3: Cross multiply
    500,306x = 749,090 × 749,090
  4. Step 4: Simplify right side
    500,306x = 561,135,828,100
  5. Step 5: Solve for x
    x = 561,135,828,100/500,306
  6. Step 6: Final answer
    x = 1,121,585.25

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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.