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Finding the Fourth Proportional to 575,815.80, 863,723.70 and 533,825.40

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Solution

The fourth proportional to 575,815.80, 863,723.70 and 533,825.40 is: 800,738.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,815.80 : 863,723.70 = 533,825.40 : x
  2. Step 2: Convert to fraction form
    575,815.80/863,723.70 = 533,825.40/x
  3. Step 3: Cross multiply
    575,815.80x = 863,723.70 × 533,825.40
  4. Step 4: Simplify right side
    575,815.80x = 461,077,649,641.98
  5. Step 5: Solve for x
    x = 461,077,649,641.98/575,815.80
  6. Step 6: Final answer
    x = 800,738.10

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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.