Home / 623,307.40-935,997.90-343,025.80

Finding the Fourth Proportional to 623,307.40, 935,997.90 and 343,025.80

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Solution

The fourth proportional to 623,307.40, 935,997.90 and 343,025.80 is: 515,109.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,307.40 : 935,997.90 = 343,025.80 : x
  2. Step 2: Convert to fraction form
    623,307.40/935,997.90 = 343,025.80/x
  3. Step 3: Cross multiply
    623,307.40x = 935,997.90 × 343,025.80
  4. Step 4: Simplify right side
    623,307.40x = 321,071,428,445.82
  5. Step 5: Solve for x
    x = 321,071,428,445.82/623,307.40
  6. Step 6: Final answer
    x = 515,109.28

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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.