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Finding the Fourth Proportional to 476,448.81, 714,001.30 and 263,312.70

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Solution

The fourth proportional to 476,448.81, 714,001.30 and 263,312.70 is: 394,597.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,448.81 : 714,001.30 = 263,312.70 : x
  2. Step 2: Convert to fraction form
    476,448.81/714,001.30 = 263,312.70/x
  3. Step 3: Cross multiply
    476,448.81x = 714,001.30 × 263,312.70
  4. Step 4: Simplify right side
    476,448.81x = 188,005,610,106.51
  5. Step 5: Solve for x
    x = 188,005,610,106.51/476,448.81
  6. Step 6: Final answer
    x = 394,597.71

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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.