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Finding the Fourth Proportional to 705,518.60, 973,769.73 and 433,820.30

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Solution

The fourth proportional to 705,518.60, 973,769.73 and 433,820.30 is: 598,766.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,518.60 : 973,769.73 = 433,820.30 : x
  2. Step 2: Convert to fraction form
    705,518.60/973,769.73 = 433,820.30/x
  3. Step 3: Cross multiply
    705,518.60x = 973,769.73 × 433,820.30
  4. Step 4: Simplify right side
    705,518.60x = 422,441,076,399.52
  5. Step 5: Solve for x
    x = 422,441,076,399.52/705,518.60
  6. Step 6: Final answer
    x = 598,766.75

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.