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Finding the Fourth Proportional to 515,801.80, 773,985.12 and 200,271.16

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Solution

The fourth proportional to 515,801.80, 773,985.12 and 200,271.16 is: 300,516.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,801.80 : 773,985.12 = 200,271.16 : x
  2. Step 2: Convert to fraction form
    515,801.80/773,985.12 = 200,271.16/x
  3. Step 3: Cross multiply
    515,801.80x = 773,985.12 × 200,271.16
  4. Step 4: Simplify right side
    515,801.80x = 155,006,897,805.14
  5. Step 5: Solve for x
    x = 155,006,897,805.14/515,801.80
  6. Step 6: Final answer
    x = 300,516.40

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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.