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Finding the Fourth Proportional to 335,521.52, 503,310.16 and 145,988.40

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Solution

The fourth proportional to 335,521.52, 503,310.16 and 145,988.40 is: 218,994.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,521.52 : 503,310.16 = 145,988.40 : x
  2. Step 2: Convert to fraction form
    335,521.52/503,310.16 = 145,988.40/x
  3. Step 3: Cross multiply
    335,521.52x = 503,310.16 × 145,988.40
  4. Step 4: Simplify right side
    335,521.52x = 73,477,444,962.14
  5. Step 5: Solve for x
    x = 73,477,444,962.14/335,521.52
  6. Step 6: Final answer
    x = 218,994.73

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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.