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Finding the Fourth Proportional to 443,909.08, 665,088.54 and 369,507.52

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Solution

The fourth proportional to 443,909.08, 665,088.54 and 369,507.52 is: 553,616.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,909.08 : 665,088.54 = 369,507.52 : x
  2. Step 2: Convert to fraction form
    443,909.08/665,088.54 = 369,507.52/x
  3. Step 3: Cross multiply
    443,909.08x = 665,088.54 × 369,507.52
  4. Step 4: Simplify right side
    443,909.08x = 245,755,216,995.82
  5. Step 5: Solve for x
    x = 245,755,216,995.82/443,909.08
  6. Step 6: Final answer
    x = 553,616.11

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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.