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Finding the Fourth Proportional to 319,152.80, 478,799.40 and 94,530.80

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Solution

The fourth proportional to 319,152.80, 478,799.40 and 94,530.80 is: 141,816.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,152.80 : 478,799.40 = 94,530.80 : x
  2. Step 2: Convert to fraction form
    319,152.80/478,799.40 = 94,530.80/x
  3. Step 3: Cross multiply
    319,152.80x = 478,799.40 × 94,530.80
  4. Step 4: Simplify right side
    319,152.80x = 45,261,290,321.52
  5. Step 5: Solve for x
    x = 45,261,290,321.52/319,152.80
  6. Step 6: Final answer
    x = 141,816.99

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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.