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Finding the Fourth Proportional to 474,318.33, 654,711.71 and 313,316.25

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Solution

The fourth proportional to 474,318.33, 654,711.71 and 313,316.25 is: 432,477.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,318.33 : 654,711.71 = 313,316.25 : x
  2. Step 2: Convert to fraction form
    474,318.33/654,711.71 = 313,316.25/x
  3. Step 3: Cross multiply
    474,318.33x = 654,711.71 × 313,316.25
  4. Step 4: Simplify right side
    474,318.33x = 205,131,816,241.71
  5. Step 5: Solve for x
    x = 205,131,816,241.71/474,318.33
  6. Step 6: Final answer
    x = 432,477.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.