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Finding the Fourth Proportional to 360,622.35, 540,455.72 and 191,779.13

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Solution

The fourth proportional to 360,622.35, 540,455.72 and 191,779.13 is: 287,414.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,622.35 : 540,455.72 = 191,779.13 : x
  2. Step 2: Convert to fraction form
    360,622.35/540,455.72 = 191,779.13/x
  3. Step 3: Cross multiply
    360,622.35x = 540,455.72 × 191,779.13
  4. Step 4: Simplify right side
    360,622.35x = 103,648,124,123.95
  5. Step 5: Solve for x
    x = 103,648,124,123.95/360,622.35
  6. Step 6: Final answer
    x = 287,414.59

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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.