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Finding the Fourth Proportional to 289,070.92, 398,870.28 and 181,564.38

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Solution

The fourth proportional to 289,070.92, 398,870.28 and 181,564.38 is: 250,528.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,070.92 : 398,870.28 = 181,564.38 : x
  2. Step 2: Convert to fraction form
    289,070.92/398,870.28 = 181,564.38/x
  3. Step 3: Cross multiply
    289,070.92x = 398,870.28 × 181,564.38
  4. Step 4: Simplify right side
    289,070.92x = 72,420,635,088.63
  5. Step 5: Solve for x
    x = 72,420,635,088.63/289,070.92
  6. Step 6: Final answer
    x = 250,528.95

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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.