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Finding the Fourth Proportional to 522,630.40, 783,945.60 and 186,051.10

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Solution

The fourth proportional to 522,630.40, 783,945.60 and 186,051.10 is: 279,076.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,630.40 : 783,945.60 = 186,051.10 : x
  2. Step 2: Convert to fraction form
    522,630.40/783,945.60 = 186,051.10/x
  3. Step 3: Cross multiply
    522,630.40x = 783,945.60 × 186,051.10
  4. Step 4: Simplify right side
    522,630.40x = 145,853,941,220.16
  5. Step 5: Solve for x
    x = 145,853,941,220.16/522,630.40
  6. Step 6: Final answer
    x = 279,076.65

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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.