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Finding the Fourth Proportional to 443,798.40, 665,697.60 and 373,555.20

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Solution

The fourth proportional to 443,798.40, 665,697.60 and 373,555.20 is: 560,332.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,798.40 : 665,697.60 = 373,555.20 : x
  2. Step 2: Convert to fraction form
    443,798.40/665,697.60 = 373,555.20/x
  3. Step 3: Cross multiply
    443,798.40x = 665,697.60 × 373,555.20
  4. Step 4: Simplify right side
    443,798.40x = 248,674,800,107.52
  5. Step 5: Solve for x
    x = 248,674,800,107.52/443,798.40
  6. Step 6: Final answer
    x = 560,332.80

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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.