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Finding the Fourth Proportional to 575,671.60, 864,393.15 and 513,079.66

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Solution

The fourth proportional to 575,671.60, 864,393.15 and 513,079.66 is: 770,408.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,671.60 : 864,393.15 = 513,079.66 : x
  2. Step 2: Convert to fraction form
    575,671.60/864,393.15 = 513,079.66/x
  3. Step 3: Cross multiply
    575,671.60x = 864,393.15 × 513,079.66
  4. Step 4: Simplify right side
    575,671.60x = 443,502,543,508.33
  5. Step 5: Solve for x
    x = 443,502,543,508.33/575,671.60
  6. Step 6: Final answer
    x = 770,408.93

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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.