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Finding the Fourth Proportional to 330,015.96, 455,384.31 and 184,801.53

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Solution

The fourth proportional to 330,015.96, 455,384.31 and 184,801.53 is: 255,004.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,015.96 : 455,384.31 = 184,801.53 : x
  2. Step 2: Convert to fraction form
    330,015.96/455,384.31 = 184,801.53/x
  3. Step 3: Cross multiply
    330,015.96x = 455,384.31 × 184,801.53
  4. Step 4: Simplify right side
    330,015.96x = 84,155,717,225.99
  5. Step 5: Solve for x
    x = 84,155,717,225.99/330,015.96
  6. Step 6: Final answer
    x = 255,004.99

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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.