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Finding the Third Proportional to 896,970 and 1,390,291

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Solution

The third proportional to 896,970 and 1,390,291 is: 2,154,931.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,970 : 1,390,291 = 1,390,291 : x
  2. Step 2: Convert to fraction form
    896,970/1,390,291 = 1,390,291/x
  3. Step 3: Cross multiply
    896,970x = 1,390,291 × 1,390,291
  4. Step 4: Simplify right side
    896,970x = 1,932,909,064,681
  5. Step 5: Solve for x
    x = 1,932,909,064,681/896,970
  6. Step 6: Final answer
    x = 2,154,931.68

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.