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Finding the Fourth Proportional to 624,089.40, 936,134.10 and 425,023.80

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Solution

The fourth proportional to 624,089.40, 936,134.10 and 425,023.80 is: 637,535.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,089.40 : 936,134.10 = 425,023.80 : x
  2. Step 2: Convert to fraction form
    624,089.40/936,134.10 = 425,023.80/x
  3. Step 3: Cross multiply
    624,089.40x = 936,134.10 × 425,023.80
  4. Step 4: Simplify right side
    624,089.40x = 397,879,272,491.58
  5. Step 5: Solve for x
    x = 397,879,272,491.58/624,089.40
  6. Step 6: Final answer
    x = 637,535.70

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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.