Home / 945,436.05-1,304,699.60-515,716.17

Finding the Fourth Proportional to 945,436.05, 1,304,699.60 and 515,716.17

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Solution

The fourth proportional to 945,436.05, 1,304,699.60 and 515,716.17 is: 711,687.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,436.05 : 1,304,699.60 = 515,716.17 : x
  2. Step 2: Convert to fraction form
    945,436.05/1,304,699.60 = 515,716.17/x
  3. Step 3: Cross multiply
    945,436.05x = 1,304,699.60 × 515,716.17
  4. Step 4: Simplify right side
    945,436.05x = 672,854,677,109.20
  5. Step 5: Solve for x
    x = 672,854,677,109.20/945,436.05
  6. Step 6: Final answer
    x = 711,687.14

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Double scale
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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.