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Finding the Fourth Proportional to 935,417.60, 1,403,334 and 436,509.44

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Solution

The fourth proportional to 935,417.60, 1,403,334 and 436,509.44 is: 654,861.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,417.60 : 1,403,334 = 436,509.44 : x
  2. Step 2: Convert to fraction form
    935,417.60/1,403,334 = 436,509.44/x
  3. Step 3: Cross multiply
    935,417.60x = 1,403,334 × 436,509.44
  4. Step 4: Simplify right side
    935,417.60x = 612,568,538,472.96
  5. Step 5: Solve for x
    x = 612,568,538,472.96/935,417.60
  6. Step 6: Final answer
    x = 654,861.04

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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.