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Finding the Fourth Proportional to 604,427.70, 906,641.55 and 446,963.70

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Solution

The fourth proportional to 604,427.70, 906,641.55 and 446,963.70 is: 670,445.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,427.70 : 906,641.55 = 446,963.70 : x
  2. Step 2: Convert to fraction form
    604,427.70/906,641.55 = 446,963.70/x
  3. Step 3: Cross multiply
    604,427.70x = 906,641.55 × 446,963.70
  4. Step 4: Simplify right side
    604,427.70x = 405,235,861,761.74
  5. Step 5: Solve for x
    x = 405,235,861,761.74/604,427.70
  6. Step 6: Final answer
    x = 670,445.55

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Similar ratio
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1.5x scale

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.