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Finding the Fourth Proportional to 468,093.60, 702,140.40 and 290,023.20

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Solution

The fourth proportional to 468,093.60, 702,140.40 and 290,023.20 is: 435,034.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,093.60 : 702,140.40 = 290,023.20 : x
  2. Step 2: Convert to fraction form
    468,093.60/702,140.40 = 290,023.20/x
  3. Step 3: Cross multiply
    468,093.60x = 702,140.40 × 290,023.20
  4. Step 4: Simplify right side
    468,093.60x = 203,637,005,657.28
  5. Step 5: Solve for x
    x = 203,637,005,657.28/468,093.60
  6. Step 6: Final answer
    x = 435,034.80

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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.