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Finding the Fourth Proportional to 328,514.70, 453,323.13 and 185,309.94

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Solution

The fourth proportional to 328,514.70, 453,323.13 and 185,309.94 is: 255,712.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,514.70 : 453,323.13 = 185,309.94 : x
  2. Step 2: Convert to fraction form
    328,514.70/453,323.13 = 185,309.94/x
  3. Step 3: Cross multiply
    328,514.70x = 453,323.13 × 185,309.94
  4. Step 4: Simplify right side
    328,514.70x = 84,005,282,020.91
  5. Step 5: Solve for x
    x = 84,005,282,020.91/328,514.70
  6. Step 6: Final answer
    x = 255,712.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.