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Finding the Fourth Proportional to 503,130.50, 755,045.66 and 325,196.18

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Solution

The fourth proportional to 503,130.50, 755,045.66 and 325,196.18 is: 488,020.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,130.50 : 755,045.66 = 325,196.18 : x
  2. Step 2: Convert to fraction form
    503,130.50/755,045.66 = 325,196.18/x
  3. Step 3: Cross multiply
    503,130.50x = 755,045.66 × 325,196.18
  4. Step 4: Simplify right side
    503,130.50x = 245,537,960,582.35
  5. Step 5: Solve for x
    x = 245,537,960,582.35/503,130.50
  6. Step 6: Final answer
    x = 488,020.43

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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.