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Finding the Fourth Proportional to 613,343.18, 846,441.50 and 341,428.32

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Solution

The fourth proportional to 613,343.18, 846,441.50 and 341,428.32 is: 471,186.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,343.18 : 846,441.50 = 341,428.32 : x
  2. Step 2: Convert to fraction form
    613,343.18/846,441.50 = 341,428.32/x
  3. Step 3: Cross multiply
    613,343.18x = 846,441.50 × 341,428.32
  4. Step 4: Simplify right side
    613,343.18x = 288,999,097,616.14
  5. Step 5: Solve for x
    x = 288,999,097,616.14/613,343.18
  6. Step 6: Final answer
    x = 471,186.61

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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.