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Finding the Third Proportional to 720,792 and 1,038,276

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Solution

The third proportional to 720,792 and 1,038,276 is: 1,495,600.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,792 : 1,038,276 = 1,038,276 : x
  2. Step 2: Convert to fraction form
    720,792/1,038,276 = 1,038,276/x
  3. Step 3: Cross multiply
    720,792x = 1,038,276 × 1,038,276
  4. Step 4: Simplify right side
    720,792x = 1,078,017,052,176
  5. Step 5: Solve for x
    x = 1,078,017,052,176/720,792
  6. Step 6: Final answer
    x = 1,495,600.74

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.