Home / 945,404.04-1,304,661.60-515,693.40

Finding the Fourth Proportional to 945,404.04, 1,304,661.60 and 515,693.40

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Solution

The fourth proportional to 945,404.04, 1,304,661.60 and 515,693.40 is: 711,659.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,404.04 : 1,304,661.60 = 515,693.40 : x
  2. Step 2: Convert to fraction form
    945,404.04/1,304,661.60 = 515,693.40/x
  3. Step 3: Cross multiply
    945,404.04x = 1,304,661.60 × 515,693.40
  4. Step 4: Simplify right side
    945,404.04x = 672,805,376,353.44
  5. Step 5: Solve for x
    x = 672,805,376,353.44/945,404.04
  6. Step 6: Final answer
    x = 711,659.09

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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.