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Finding the Fourth Proportional to 463,638.06, 695,457.09 and 253,161.18

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Solution

The fourth proportional to 463,638.06, 695,457.09 and 253,161.18 is: 379,741.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,638.06 : 695,457.09 = 253,161.18 : x
  2. Step 2: Convert to fraction form
    463,638.06/695,457.09 = 253,161.18/x
  3. Step 3: Cross multiply
    463,638.06x = 695,457.09 × 253,161.18
  4. Step 4: Simplify right side
    463,638.06x = 176,062,737,543.77
  5. Step 5: Solve for x
    x = 176,062,737,543.77/463,638.06
  6. Step 6: Final answer
    x = 379,741.77

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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.