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Finding the Fourth Proportional to 527,259.58, 790,725.72 and 190,256.50

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Solution

The fourth proportional to 527,259.58, 790,725.72 and 190,256.50 is: 285,325.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,259.58 : 790,725.72 = 190,256.50 : x
  2. Step 2: Convert to fraction form
    527,259.58/790,725.72 = 190,256.50/x
  3. Step 3: Cross multiply
    527,259.58x = 790,725.72 × 190,256.50
  4. Step 4: Simplify right side
    527,259.58x = 150,440,707,947.18
  5. Step 5: Solve for x
    x = 150,440,707,947.18/527,259.58
  6. Step 6: Final answer
    x = 285,325.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.