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Finding the Fourth Proportional to 384,188.88, 530,228.52 and 223,009.32

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Solution

The fourth proportional to 384,188.88, 530,228.52 and 223,009.32 is: 307,780.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,188.88 : 530,228.52 = 223,009.32 : x
  2. Step 2: Convert to fraction form
    384,188.88/530,228.52 = 223,009.32/x
  3. Step 3: Cross multiply
    384,188.88x = 530,228.52 × 223,009.32
  4. Step 4: Simplify right side
    384,188.88x = 118,245,901,689.81
  5. Step 5: Solve for x
    x = 118,245,901,689.81/384,188.88
  6. Step 6: Final answer
    x = 307,780.65

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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.