Home / 945,411.40-1,304,619.78-515,688.04

Finding the Fourth Proportional to 945,411.40, 1,304,619.78 and 515,688.04

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Solution

The fourth proportional to 945,411.40, 1,304,619.78 and 515,688.04 is: 711,623.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,411.40 : 1,304,619.78 = 515,688.04 : x
  2. Step 2: Convert to fraction form
    945,411.40/1,304,619.78 = 515,688.04/x
  3. Step 3: Cross multiply
    945,411.40x = 1,304,619.78 × 515,688.04
  4. Step 4: Simplify right side
    945,411.40x = 672,776,817,293.43
  5. Step 5: Solve for x
    x = 672,776,817,293.43/945,411.40
  6. Step 6: Final answer
    x = 711,623.34

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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.