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Finding the Fourth Proportional to 501,141.40, 751,712.10 and 235,420.90

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Solution

The fourth proportional to 501,141.40, 751,712.10 and 235,420.90 is: 353,131.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,141.40 : 751,712.10 = 235,420.90 : x
  2. Step 2: Convert to fraction form
    501,141.40/751,712.10 = 235,420.90/x
  3. Step 3: Cross multiply
    501,141.40x = 751,712.10 × 235,420.90
  4. Step 4: Simplify right side
    501,141.40x = 176,968,739,122.89
  5. Step 5: Solve for x
    x = 176,968,739,122.89/501,141.40
  6. Step 6: Final answer
    x = 353,131.35

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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.