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Finding the Fourth Proportional to 292,275.70, 438,413.55 and 197,797.30

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Solution

The fourth proportional to 292,275.70, 438,413.55 and 197,797.30 is: 296,695.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,275.70 : 438,413.55 = 197,797.30 : x
  2. Step 2: Convert to fraction form
    292,275.70/438,413.55 = 197,797.30/x
  3. Step 3: Cross multiply
    292,275.70x = 438,413.55 × 197,797.30
  4. Step 4: Simplify right side
    292,275.70x = 86,717,016,473.42
  5. Step 5: Solve for x
    x = 86,717,016,473.42/292,275.70
  6. Step 6: Final answer
    x = 296,695.95

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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.