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Finding the Fourth Proportional to 530,112.60, 795,168.90 and 404,141.40

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Solution

The fourth proportional to 530,112.60, 795,168.90 and 404,141.40 is: 606,212.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,112.60 : 795,168.90 = 404,141.40 : x
  2. Step 2: Convert to fraction form
    530,112.60/795,168.90 = 404,141.40/x
  3. Step 3: Cross multiply
    530,112.60x = 795,168.90 × 404,141.40
  4. Step 4: Simplify right side
    530,112.60x = 321,360,672,482.46
  5. Step 5: Solve for x
    x = 321,360,672,482.46/530,112.60
  6. Step 6: Final answer
    x = 606,212.10

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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.