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Finding the Fourth Proportional to 533,239.47, 800,154.45 and 319,482.09

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Solution

The fourth proportional to 533,239.47, 800,154.45 and 319,482.09 is: 479,400.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,239.47 : 800,154.45 = 319,482.09 : x
  2. Step 2: Convert to fraction form
    533,239.47/800,154.45 = 319,482.09/x
  3. Step 3: Cross multiply
    533,239.47x = 800,154.45 × 319,482.09
  4. Step 4: Simplify right side
    533,239.47x = 255,635,016,008.80
  5. Step 5: Solve for x
    x = 255,635,016,008.80/533,239.47
  6. Step 6: Final answer
    x = 479,400.03

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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.