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Finding the Fourth Proportional to 575,786.21, 794,173.61 and 499,168.31

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Solution

The fourth proportional to 575,786.21, 794,173.61 and 499,168.31 is: 688,495.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,786.21 : 794,173.61 = 499,168.31 : x
  2. Step 2: Convert to fraction form
    575,786.21/794,173.61 = 499,168.31/x
  3. Step 3: Cross multiply
    575,786.21x = 794,173.61 × 499,168.31
  4. Step 4: Simplify right side
    575,786.21x = 396,426,296,027.35
  5. Step 5: Solve for x
    x = 396,426,296,027.35/575,786.21
  6. Step 6: Final answer
    x = 688,495.65

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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.