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Finding the Fourth Proportional to 604,176.40, 906,264.60 and 405,110.80

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Solution

The fourth proportional to 604,176.40, 906,264.60 and 405,110.80 is: 607,666.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,176.40 : 906,264.60 = 405,110.80 : x
  2. Step 2: Convert to fraction form
    604,176.40/906,264.60 = 405,110.80/x
  3. Step 3: Cross multiply
    604,176.40x = 906,264.60 × 405,110.80
  4. Step 4: Simplify right side
    604,176.40x = 367,137,577,117.68
  5. Step 5: Solve for x
    x = 367,137,577,117.68/604,176.40
  6. Step 6: Final answer
    x = 607,666.20

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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.