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Finding the Fourth Proportional to 335,514.30, 503,271.45 and 319,962.30

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Solution

The fourth proportional to 335,514.30, 503,271.45 and 319,962.30 is: 479,943.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,514.30 : 503,271.45 = 319,962.30 : x
  2. Step 2: Convert to fraction form
    335,514.30/503,271.45 = 319,962.30/x
  3. Step 3: Cross multiply
    335,514.30x = 503,271.45 × 319,962.30
  4. Step 4: Simplify right side
    335,514.30x = 161,027,890,666.34
  5. Step 5: Solve for x
    x = 161,027,890,666.34/335,514.30
  6. Step 6: Final answer
    x = 479,943.45

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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.