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Finding the Fourth Proportional to 307,632.13, 424,468.86 and 176,784.42

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Solution

The fourth proportional to 307,632.13, 424,468.86 and 176,784.42 is: 243,926.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,632.13 : 424,468.86 = 176,784.42 : x
  2. Step 2: Convert to fraction form
    307,632.13/424,468.86 = 176,784.42/x
  3. Step 3: Cross multiply
    307,632.13x = 424,468.86 × 176,784.42
  4. Step 4: Simplify right side
    307,632.13x = 75,039,482,151.98
  5. Step 5: Solve for x
    x = 75,039,482,151.98/307,632.13
  6. Step 6: Final answer
    x = 243,926.03

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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.