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Finding the Fourth Proportional to 330,153.45, 495,230.18 and 153,006.45

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Solution

The fourth proportional to 330,153.45, 495,230.18 and 153,006.45 is: 229,509.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,153.45 : 495,230.18 = 153,006.45 : x
  2. Step 2: Convert to fraction form
    330,153.45/495,230.18 = 153,006.45/x
  3. Step 3: Cross multiply
    330,153.45x = 495,230.18 × 153,006.45
  4. Step 4: Simplify right side
    330,153.45x = 75,773,411,009.63
  5. Step 5: Solve for x
    x = 75,773,411,009.63/330,153.45
  6. Step 6: Final answer
    x = 229,509.68

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Similar ratio
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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.