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Finding the Fourth Proportional to 530,162.40, 795,243.60 and 425,186.40

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Solution

The fourth proportional to 530,162.40, 795,243.60 and 425,186.40 is: 637,779.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,162.40 : 795,243.60 = 425,186.40 : x
  2. Step 2: Convert to fraction form
    530,162.40/795,243.60 = 425,186.40/x
  3. Step 3: Cross multiply
    530,162.40x = 795,243.60 × 425,186.40
  4. Step 4: Simplify right side
    530,162.40x = 338,126,763,407.04
  5. Step 5: Solve for x
    x = 338,126,763,407.04/530,162.40
  6. Step 6: Final answer
    x = 637,779.60

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Similar ratio
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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.