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Finding the Fourth Proportional to 447,756.48, 671,633.98 and 307,088.64

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Solution

The fourth proportional to 447,756.48, 671,633.98 and 307,088.64 is: 460,632.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,756.48 : 671,633.98 = 307,088.64 : x
  2. Step 2: Convert to fraction form
    447,756.48/671,633.98 = 307,088.64/x
  3. Step 3: Cross multiply
    447,756.48x = 671,633.98 × 307,088.64
  4. Step 4: Simplify right side
    447,756.48x = 206,251,165,495.99
  5. Step 5: Solve for x
    x = 206,251,165,495.99/447,756.48
  6. Step 6: Final answer
    x = 460,632.45

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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.