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Finding the Fourth Proportional to 617,152.90, 925,729.35 and 492,736.90

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Solution

The fourth proportional to 617,152.90, 925,729.35 and 492,736.90 is: 739,105.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,152.90 : 925,729.35 = 492,736.90 : x
  2. Step 2: Convert to fraction form
    617,152.90/925,729.35 = 492,736.90/x
  3. Step 3: Cross multiply
    617,152.90x = 925,729.35 × 492,736.90
  4. Step 4: Simplify right side
    617,152.90x = 456,141,010,158.02
  5. Step 5: Solve for x
    x = 456,141,010,158.02/617,152.90
  6. Step 6: Final answer
    x = 739,105.35

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Double scale
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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.