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Finding the Third Proportional to 523,980 and 785,160

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Solution

The third proportional to 523,980 and 785,160 is: 1,176,526.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,980 : 785,160 = 785,160 : x
  2. Step 2: Convert to fraction form
    523,980/785,160 = 785,160/x
  3. Step 3: Cross multiply
    523,980x = 785,160 × 785,160
  4. Step 4: Simplify right side
    523,980x = 616,476,225,600
  5. Step 5: Solve for x
    x = 616,476,225,600/523,980
  6. Step 6: Final answer
    x = 1,176,526.25

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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.