Home / 945,524-1,304,823.12-515,805.86

Finding the Fourth Proportional to 945,524, 1,304,823.12 and 515,805.86

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Solution

The fourth proportional to 945,524, 1,304,823.12 and 515,805.86 is: 711,812.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,524 : 1,304,823.12 = 515,805.86 : x
  2. Step 2: Convert to fraction form
    945,524/1,304,823.12 = 515,805.86/x
  3. Step 3: Cross multiply
    945,524x = 1,304,823.12 × 515,805.86
  4. Step 4: Simplify right side
    945,524x = 673,035,411,559.48
  5. Step 5: Solve for x
    x = 673,035,411,559.48/945,524
  6. Step 6: Final answer
    x = 711,812.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.