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Finding the Fourth Proportional to 351,113.60, 526,897.20 and 193,455.20

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Solution

The fourth proportional to 351,113.60, 526,897.20 and 193,455.20 is: 290,307.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,113.60 : 526,897.20 = 193,455.20 : x
  2. Step 2: Convert to fraction form
    351,113.60/526,897.20 = 193,455.20/x
  3. Step 3: Cross multiply
    351,113.60x = 526,897.20 × 193,455.20
  4. Step 4: Simplify right side
    351,113.60x = 101,931,003,205.44
  5. Step 5: Solve for x
    x = 101,931,003,205.44/351,113.60
  6. Step 6: Final answer
    x = 290,307.76

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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.