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Finding the Fourth Proportional to 404,220.40, 605,164.20 and 357,564.40

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Solution

The fourth proportional to 404,220.40, 605,164.20 and 357,564.40 is: 535,314.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,220.40 : 605,164.20 = 357,564.40 : x
  2. Step 2: Convert to fraction form
    404,220.40/605,164.20 = 357,564.40/x
  3. Step 3: Cross multiply
    404,220.40x = 605,164.20 × 357,564.40
  4. Step 4: Simplify right side
    404,220.40x = 216,385,174,074.48
  5. Step 5: Solve for x
    x = 216,385,174,074.48/404,220.40
  6. Step 6: Final answer
    x = 535,314.83

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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.