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Finding the Fourth Proportional to 441,397.80, 661,210.56 and 373,639.68

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Solution

The fourth proportional to 441,397.80, 661,210.56 and 373,639.68 is: 559,709.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,397.80 : 661,210.56 = 373,639.68 : x
  2. Step 2: Convert to fraction form
    441,397.80/661,210.56 = 373,639.68/x
  3. Step 3: Cross multiply
    441,397.80x = 661,210.56 × 373,639.68
  4. Step 4: Simplify right side
    441,397.80x = 247,054,502,051.02
  5. Step 5: Solve for x
    x = 247,054,502,051.02/441,397.80
  6. Step 6: Final answer
    x = 559,709.41

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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.