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Finding the Fourth Proportional to 357,353.51, 534,878.43 and 197,177.63

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Solution

The fourth proportional to 357,353.51, 534,878.43 and 197,177.63 is: 295,130.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,353.51 : 534,878.43 = 197,177.63 : x
  2. Step 2: Convert to fraction form
    357,353.51/534,878.43 = 197,177.63/x
  3. Step 3: Cross multiply
    357,353.51x = 534,878.43 × 197,177.63
  4. Step 4: Simplify right side
    357,353.51x = 105,466,061,165.52
  5. Step 5: Solve for x
    x = 105,466,061,165.52/357,353.51
  6. Step 6: Final answer
    x = 295,130.89

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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.