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Finding the Fourth Proportional to 565,422.10, 848,133.15 and 285,486.10

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Solution

The fourth proportional to 565,422.10, 848,133.15 and 285,486.10 is: 428,229.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,422.10 : 848,133.15 = 285,486.10 : x
  2. Step 2: Convert to fraction form
    565,422.10/848,133.15 = 285,486.10/x
  3. Step 3: Cross multiply
    565,422.10x = 848,133.15 × 285,486.10
  4. Step 4: Simplify right side
    565,422.10x = 242,130,225,274.22
  5. Step 5: Solve for x
    x = 242,130,225,274.22/565,422.10
  6. Step 6: Final answer
    x = 428,229.15

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Double scale
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Similar ratio
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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.