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Finding the Fourth Proportional to 330,368.64, 455,800.30 and 185,153.23

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Solution

The fourth proportional to 330,368.64, 455,800.30 and 185,153.23 is: 255,450.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,368.64 : 455,800.30 = 185,153.23 : x
  2. Step 2: Convert to fraction form
    330,368.64/455,800.30 = 185,153.23/x
  3. Step 3: Cross multiply
    330,368.64x = 455,800.30 × 185,153.23
  4. Step 4: Simplify right side
    330,368.64x = 84,392,897,779.97
  5. Step 5: Solve for x
    x = 84,392,897,779.97/330,368.64
  6. Step 6: Final answer
    x = 255,450.69

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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.