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Finding the Fourth Proportional to 328,410.86, 453,463.52 and 256,994.37

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Solution

The fourth proportional to 328,410.86, 453,463.52 and 256,994.37 is: 354,852.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,410.86 : 453,463.52 = 256,994.37 : x
  2. Step 2: Convert to fraction form
    328,410.86/453,463.52 = 256,994.37/x
  3. Step 3: Cross multiply
    328,410.86x = 453,463.52 × 256,994.37
  4. Step 4: Simplify right side
    328,410.86x = 116,537,570,355.41
  5. Step 5: Solve for x
    x = 116,537,570,355.41/328,410.86
  6. Step 6: Final answer
    x = 354,852.98

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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.