Home / 945,591.18-1,304,870.32-515,845.68

Finding the Fourth Proportional to 945,591.18, 1,304,870.32 and 515,845.68

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Solution

The fourth proportional to 945,591.18, 1,304,870.32 and 515,845.68 is: 711,842.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,591.18 : 1,304,870.32 = 515,845.68 : x
  2. Step 2: Convert to fraction form
    945,591.18/1,304,870.32 = 515,845.68/x
  3. Step 3: Cross multiply
    945,591.18x = 1,304,870.32 × 515,845.68
  4. Step 4: Simplify right side
    945,591.18x = 673,111,717,532.22
  5. Step 5: Solve for x
    x = 673,111,717,532.22/945,591.18
  6. Step 6: Final answer
    x = 711,842.21

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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.