Home / 945,529.50-1,304,830.71-515,811.36

Finding the Fourth Proportional to 945,529.50, 1,304,830.71 and 515,811.36

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Solution

The fourth proportional to 945,529.50, 1,304,830.71 and 515,811.36 is: 711,819.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,529.50 : 1,304,830.71 = 515,811.36 : x
  2. Step 2: Convert to fraction form
    945,529.50/1,304,830.71 = 515,811.36/x
  3. Step 3: Cross multiply
    945,529.50x = 1,304,830.71 × 515,811.36
  4. Step 4: Simplify right side
    945,529.50x = 673,046,503,094.87
  5. Step 5: Solve for x
    x = 673,046,503,094.87/945,529.50
  6. Step 6: Final answer
    x = 711,819.68

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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.