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Finding the Fourth Proportional to 455,200.52, 628,196.40 and 253,996.52

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Solution

The fourth proportional to 455,200.52, 628,196.40 and 253,996.52 is: 350,526.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,200.52 : 628,196.40 = 253,996.52 : x
  2. Step 2: Convert to fraction form
    455,200.52/628,196.40 = 253,996.52/x
  3. Step 3: Cross multiply
    455,200.52x = 628,196.40 × 253,996.52
  4. Step 4: Simplify right side
    455,200.52x = 159,559,699,476.53
  5. Step 5: Solve for x
    x = 159,559,699,476.53/455,200.52
  6. Step 6: Final answer
    x = 350,526.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.