Home / 945,605.67-1,304,890.34-515,860.17

Finding the Fourth Proportional to 945,605.67, 1,304,890.34 and 515,860.17

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Solution

The fourth proportional to 945,605.67, 1,304,890.34 and 515,860.17 is: 711,862.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,605.67 : 1,304,890.34 = 515,860.17 : x
  2. Step 2: Convert to fraction form
    945,605.67/1,304,890.34 = 515,860.17/x
  3. Step 3: Cross multiply
    945,605.67x = 1,304,890.34 × 515,860.17
  4. Step 4: Simplify right side
    945,605.67x = 673,140,950,044.46
  5. Step 5: Solve for x
    x = 673,140,950,044.46/945,605.67
  6. Step 6: Final answer
    x = 711,862.22

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Double scale
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Similar ratio
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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.