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Finding the Fourth Proportional to 617,618.40, 926,427.60 and 243,592.80

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Solution

The fourth proportional to 617,618.40, 926,427.60 and 243,592.80 is: 365,389.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,618.40 : 926,427.60 = 243,592.80 : x
  2. Step 2: Convert to fraction form
    617,618.40/926,427.60 = 243,592.80/x
  3. Step 3: Cross multiply
    617,618.40x = 926,427.60 × 243,592.80
  4. Step 4: Simplify right side
    617,618.40x = 225,671,093,081.28
  5. Step 5: Solve for x
    x = 225,671,093,081.28/617,618.40
  6. Step 6: Final answer
    x = 365,389.20

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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.