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Finding the Fourth Proportional to 617,109.40, 925,664.10 and 492,693.40

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Solution

The fourth proportional to 617,109.40, 925,664.10 and 492,693.40 is: 739,040.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,109.40 : 925,664.10 = 492,693.40 : x
  2. Step 2: Convert to fraction form
    617,109.40/925,664.10 = 492,693.40/x
  3. Step 3: Cross multiply
    617,109.40x = 925,664.10 × 492,693.40
  4. Step 4: Simplify right side
    617,109.40x = 456,068,592,686.94
  5. Step 5: Solve for x
    x = 456,068,592,686.94/617,109.40
  6. Step 6: Final answer
    x = 739,040.10

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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.