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Finding the Fourth Proportional to 432,051.30, 648,368.55 and 242,511.30

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Solution

The fourth proportional to 432,051.30, 648,368.55 and 242,511.30 is: 363,930.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,051.30 : 648,368.55 = 242,511.30 : x
  2. Step 2: Convert to fraction form
    432,051.30/648,368.55 = 242,511.30/x
  3. Step 3: Cross multiply
    432,051.30x = 648,368.55 × 242,511.30
  4. Step 4: Simplify right side
    432,051.30x = 157,236,699,939.62
  5. Step 5: Solve for x
    x = 157,236,699,939.62/432,051.30
  6. Step 6: Final answer
    x = 363,930.63

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1.5x scale

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.