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Finding the Fourth Proportional to 355,037.48, 489,955.62 and 193,897.27

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Solution

The fourth proportional to 355,037.48, 489,955.62 and 193,897.27 is: 267,580.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,037.48 : 489,955.62 = 193,897.27 : x
  2. Step 2: Convert to fraction form
    355,037.48/489,955.62 = 193,897.27/x
  3. Step 3: Cross multiply
    355,037.48x = 489,955.62 × 193,897.27
  4. Step 4: Simplify right side
    355,037.48x = 95,001,057,139.16
  5. Step 5: Solve for x
    x = 95,001,057,139.16/355,037.48
  6. Step 6: Final answer
    x = 267,580.36

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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.