Home / 808,216.80-1,212,325.20-528,050.40

Finding the Fourth Proportional to 808,216.80, 1,212,325.20 and 528,050.40

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Solution

The fourth proportional to 808,216.80, 1,212,325.20 and 528,050.40 is: 792,075.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,216.80 : 1,212,325.20 = 528,050.40 : x
  2. Step 2: Convert to fraction form
    808,216.80/1,212,325.20 = 528,050.40/x
  3. Step 3: Cross multiply
    808,216.80x = 1,212,325.20 × 528,050.40
  4. Step 4: Simplify right side
    808,216.80x = 640,168,806,790.08
  5. Step 5: Solve for x
    x = 640,168,806,790.08/808,216.80
  6. Step 6: Final answer
    x = 792,075.60

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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.