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Finding the Fourth Proportional to 614,661.13, 920,253.02 and 325,814.62

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Solution

The fourth proportional to 614,661.13, 920,253.02 and 325,814.62 is: 487,800.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,661.13 : 920,253.02 = 325,814.62 : x
  2. Step 2: Convert to fraction form
    614,661.13/920,253.02 = 325,814.62/x
  3. Step 3: Cross multiply
    614,661.13x = 920,253.02 × 325,814.62
  4. Step 4: Simplify right side
    614,661.13x = 299,831,888,015.15
  5. Step 5: Solve for x
    x = 299,831,888,015.15/614,661.13
  6. Step 6: Final answer
    x = 487,800.31

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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.