Home / 808,197.80-1,212,296.70-528,031.40

Finding the Fourth Proportional to 808,197.80, 1,212,296.70 and 528,031.40

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Solution

The fourth proportional to 808,197.80, 1,212,296.70 and 528,031.40 is: 792,047.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,197.80 : 1,212,296.70 = 528,031.40 : x
  2. Step 2: Convert to fraction form
    808,197.80/1,212,296.70 = 528,031.40/x
  3. Step 3: Cross multiply
    808,197.80x = 1,212,296.70 × 528,031.40
  4. Step 4: Simplify right side
    808,197.80x = 640,130,723,716.38
  5. Step 5: Solve for x
    x = 640,130,723,716.38/808,197.80
  6. Step 6: Final answer
    x = 792,047.10

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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.