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Finding the Fourth Proportional to 565,641.20, 848,461.80 and 543,868.40

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Solution

The fourth proportional to 565,641.20, 848,461.80 and 543,868.40 is: 815,802.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,641.20 : 848,461.80 = 543,868.40 : x
  2. Step 2: Convert to fraction form
    565,641.20/848,461.80 = 543,868.40/x
  3. Step 3: Cross multiply
    565,641.20x = 848,461.80 × 543,868.40
  4. Step 4: Simplify right side
    565,641.20x = 461,451,561,627.12
  5. Step 5: Solve for x
    x = 461,451,561,627.12/565,641.20
  6. Step 6: Final answer
    x = 815,802.60

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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.