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Finding the Fourth Proportional to 624,088.40, 936,132.60 and 425,022.80

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Solution

The fourth proportional to 624,088.40, 936,132.60 and 425,022.80 is: 637,534.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,088.40 : 936,132.60 = 425,022.80 : x
  2. Step 2: Convert to fraction form
    624,088.40/936,132.60 = 425,022.80/x
  3. Step 3: Cross multiply
    624,088.40x = 936,132.60 × 425,022.80
  4. Step 4: Simplify right side
    624,088.40x = 397,877,698,823.28
  5. Step 5: Solve for x
    x = 397,877,698,823.28/624,088.40
  6. Step 6: Final answer
    x = 637,534.20

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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.