Home / 809,259.60-1,215,271.80-436,011.60

Finding the Fourth Proportional to 809,259.60, 1,215,271.80 and 436,011.60

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Solution

The fourth proportional to 809,259.60, 1,215,271.80 and 436,011.60 is: 654,762.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,259.60 : 1,215,271.80 = 436,011.60 : x
  2. Step 2: Convert to fraction form
    809,259.60/1,215,271.80 = 436,011.60/x
  3. Step 3: Cross multiply
    809,259.60x = 1,215,271.80 × 436,011.60
  4. Step 4: Simplify right side
    809,259.60x = 529,872,601,952.88
  5. Step 5: Solve for x
    x = 529,872,601,952.88/809,259.60
  6. Step 6: Final answer
    x = 654,762.21

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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.