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Finding the Fourth Proportional to 328,885.48, 453,860.58 and 185,643.88

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Solution

The fourth proportional to 328,885.48, 453,860.58 and 185,643.88 is: 256,187.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,885.48 : 453,860.58 = 185,643.88 : x
  2. Step 2: Convert to fraction form
    328,885.48/453,860.58 = 185,643.88/x
  3. Step 3: Cross multiply
    328,885.48x = 453,860.58 × 185,643.88
  4. Step 4: Simplify right side
    328,885.48x = 84,256,439,050.25
  5. Step 5: Solve for x
    x = 84,256,439,050.25/328,885.48
  6. Step 6: Final answer
    x = 256,187.77

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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.