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Finding the Fourth Proportional to 606,466.76, 837,193.12 and 391,711.56

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Solution

The fourth proportional to 606,466.76, 837,193.12 and 391,711.56 is: 540,735.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,466.76 : 837,193.12 = 391,711.56 : x
  2. Step 2: Convert to fraction form
    606,466.76/837,193.12 = 391,711.56/x
  3. Step 3: Cross multiply
    606,466.76x = 837,193.12 × 391,711.56
  4. Step 4: Simplify right side
    606,466.76x = 327,938,223,056.47
  5. Step 5: Solve for x
    x = 327,938,223,056.47/606,466.76
  6. Step 6: Final answer
    x = 540,735.69

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Double scale
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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.