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Finding the Fourth Proportional to 530,130.60, 795,195.90 and 404,159.40

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Solution

The fourth proportional to 530,130.60, 795,195.90 and 404,159.40 is: 606,239.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,130.60 : 795,195.90 = 404,159.40 : x
  2. Step 2: Convert to fraction form
    530,130.60/795,195.90 = 404,159.40/x
  3. Step 3: Cross multiply
    530,130.60x = 795,195.90 × 404,159.40
  4. Step 4: Simplify right side
    530,130.60x = 321,385,897,826.46
  5. Step 5: Solve for x
    x = 321,385,897,826.46/530,130.60
  6. Step 6: Final answer
    x = 606,239.10

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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.