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Finding the Fourth Proportional to 675,311.04, 931,953.60 and 373,507.20

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Solution

The fourth proportional to 675,311.04, 931,953.60 and 373,507.20 is: 515,453.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,311.04 : 931,953.60 = 373,507.20 : x
  2. Step 2: Convert to fraction form
    675,311.04/931,953.60 = 373,507.20/x
  3. Step 3: Cross multiply
    675,311.04x = 931,953.60 × 373,507.20
  4. Step 4: Simplify right side
    675,311.04x = 348,091,379,665.92
  5. Step 5: Solve for x
    x = 348,091,379,665.92/675,311.04
  6. Step 6: Final answer
    x = 515,453.41

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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.