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Finding the Fourth Proportional to 522,640.36, 783,623.58 and 223,316.20

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Solution

The fourth proportional to 522,640.36, 783,623.58 and 223,316.20 is: 334,830.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,640.36 : 783,623.58 = 223,316.20 : x
  2. Step 2: Convert to fraction form
    522,640.36/783,623.58 = 223,316.20/x
  3. Step 3: Cross multiply
    522,640.36x = 783,623.58 × 223,316.20
  4. Step 4: Simplify right side
    522,640.36x = 174,995,840,116.00
  5. Step 5: Solve for x
    x = 174,995,840,116.00/522,640.36
  6. Step 6: Final answer
    x = 334,830.32

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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.