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Finding the Fourth Proportional to 620,382.60, 930,573.90 and 565,270.20

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Solution

The fourth proportional to 620,382.60, 930,573.90 and 565,270.20 is: 847,905.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,382.60 : 930,573.90 = 565,270.20 : x
  2. Step 2: Convert to fraction form
    620,382.60/930,573.90 = 565,270.20/x
  3. Step 3: Cross multiply
    620,382.60x = 930,573.90 × 565,270.20
  4. Step 4: Simplify right side
    620,382.60x = 526,025,694,567.78
  5. Step 5: Solve for x
    x = 526,025,694,567.78/620,382.60
  6. Step 6: Final answer
    x = 847,905.30

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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.