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Finding the Fourth Proportional to 617,918.40, 927,655.20 and 333,835.20

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Solution

The fourth proportional to 617,918.40, 927,655.20 and 333,835.20 is: 501,172.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,918.40 : 927,655.20 = 333,835.20 : x
  2. Step 2: Convert to fraction form
    617,918.40/927,655.20 = 333,835.20/x
  3. Step 3: Cross multiply
    617,918.40x = 927,655.20 × 333,835.20
  4. Step 4: Simplify right side
    617,918.40x = 309,683,959,223.04
  5. Step 5: Solve for x
    x = 309,683,959,223.04/617,918.40
  6. Step 6: Final answer
    x = 501,172.90

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1.5x scale

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.