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Finding the Fourth Proportional to 622,809.10, 934,213.65 and 610,999.30

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Solution

The fourth proportional to 622,809.10, 934,213.65 and 610,999.30 is: 916,498.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,809.10 : 934,213.65 = 610,999.30 : x
  2. Step 2: Convert to fraction form
    622,809.10/934,213.65 = 610,999.30/x
  3. Step 3: Cross multiply
    622,809.10x = 934,213.65 × 610,999.30
  4. Step 4: Simplify right side
    622,809.10x = 570,803,886,200.45
  5. Step 5: Solve for x
    x = 570,803,886,200.45/622,809.10
  6. Step 6: Final answer
    x = 916,498.95

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Similar ratio
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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.