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Finding the Fourth Proportional to 607,328.20, 911,648.40 and 341,607.70

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Solution

The fourth proportional to 607,328.20, 911,648.40 and 341,607.70 is: 512,780.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,328.20 : 911,648.40 = 341,607.70 : x
  2. Step 2: Convert to fraction form
    607,328.20/911,648.40 = 341,607.70/x
  3. Step 3: Cross multiply
    607,328.20x = 911,648.40 × 341,607.70
  4. Step 4: Simplify right side
    607,328.20x = 311,426,113,132.68
  5. Step 5: Solve for x
    x = 311,426,113,132.68/607,328.20
  6. Step 6: Final answer
    x = 512,780.59

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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.