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Finding the Fourth Proportional to 612,973.50, 919,460.25 and 169,741.50

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Solution

The fourth proportional to 612,973.50, 919,460.25 and 169,741.50 is: 254,612.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,973.50 : 919,460.25 = 169,741.50 : x
  2. Step 2: Convert to fraction form
    612,973.50/919,460.25 = 169,741.50/x
  3. Step 3: Cross multiply
    612,973.50x = 919,460.25 × 169,741.50
  4. Step 4: Simplify right side
    612,973.50x = 156,070,562,025.38
  5. Step 5: Solve for x
    x = 156,070,562,025.38/612,973.50
  6. Step 6: Final answer
    x = 254,612.25

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Double scale
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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.