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Finding the Fourth Proportional to 328,699.74, 453,627 and 185,407.50

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Solution

The fourth proportional to 328,699.74, 453,627 and 185,407.50 is: 255,874.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,699.74 : 453,627 = 185,407.50 : x
  2. Step 2: Convert to fraction form
    328,699.74/453,627 = 185,407.50/x
  3. Step 3: Cross multiply
    328,699.74x = 453,627 × 185,407.50
  4. Step 4: Simplify right side
    328,699.74x = 84,105,848,002.50
  5. Step 5: Solve for x
    x = 84,105,848,002.50/328,699.74
  6. Step 6: Final answer
    x = 255,874.40

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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.