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Finding the Fourth Proportional to 539,862.80, 809,794.20 and 362,915.60

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Solution

The fourth proportional to 539,862.80, 809,794.20 and 362,915.60 is: 544,373.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,862.80 : 809,794.20 = 362,915.60 : x
  2. Step 2: Convert to fraction form
    539,862.80/809,794.20 = 362,915.60/x
  3. Step 3: Cross multiply
    539,862.80x = 809,794.20 × 362,915.60
  4. Step 4: Simplify right side
    539,862.80x = 293,886,947,969.52
  5. Step 5: Solve for x
    x = 293,886,947,969.52/539,862.80
  6. Step 6: Final answer
    x = 544,373.40

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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.