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Finding the Fourth Proportional to 613,597.72, 846,561.90 and 358,768.48

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Solution

The fourth proportional to 613,597.72, 846,561.90 and 358,768.48 is: 494,981.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,597.72 : 846,561.90 = 358,768.48 : x
  2. Step 2: Convert to fraction form
    613,597.72/846,561.90 = 358,768.48/x
  3. Step 3: Cross multiply
    613,597.72x = 846,561.90 × 358,768.48
  4. Step 4: Simplify right side
    613,597.72x = 303,719,726,088.91
  5. Step 5: Solve for x
    x = 303,719,726,088.91/613,597.72
  6. Step 6: Final answer
    x = 494,981.84

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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.