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Finding the Fourth Proportional to 313,474.30, 432,603.10 and 184,421.86

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Solution

The fourth proportional to 313,474.30, 432,603.10 and 184,421.86 is: 254,507.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,474.30 : 432,603.10 = 184,421.86 : x
  2. Step 2: Convert to fraction form
    313,474.30/432,603.10 = 184,421.86/x
  3. Step 3: Cross multiply
    313,474.30x = 432,603.10 × 184,421.86
  4. Step 4: Simplify right side
    313,474.30x = 79,781,468,343.77
  5. Step 5: Solve for x
    x = 79,781,468,343.77/313,474.30
  6. Step 6: Final answer
    x = 254,507.21

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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.