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Finding the Fourth Proportional to 353,000.37, 487,143.71 and 191,855.80

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Solution

The fourth proportional to 353,000.37, 487,143.71 and 191,855.80 is: 264,762.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,000.37 : 487,143.71 = 191,855.80 : x
  2. Step 2: Convert to fraction form
    353,000.37/487,143.71 = 191,855.80/x
  3. Step 3: Cross multiply
    353,000.37x = 487,143.71 × 191,855.80
  4. Step 4: Simplify right side
    353,000.37x = 93,461,346,197.02
  5. Step 5: Solve for x
    x = 93,461,346,197.02/353,000.37
  6. Step 6: Final answer
    x = 264,762.74

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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.