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Finding the Fourth Proportional to 591,533.40, 885,987.90 and 512,801.40

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Solution

The fourth proportional to 591,533.40, 885,987.90 and 512,801.40 is: 768,064.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,533.40 : 885,987.90 = 512,801.40 : x
  2. Step 2: Convert to fraction form
    591,533.40/885,987.90 = 512,801.40/x
  3. Step 3: Cross multiply
    591,533.40x = 885,987.90 × 512,801.40
  4. Step 4: Simplify right side
    591,533.40x = 454,335,835,503.06
  5. Step 5: Solve for x
    x = 454,335,835,503.06/591,533.40
  6. Step 6: Final answer
    x = 768,064.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.