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Finding the Fourth Proportional to 443,543.40, 612,095.80 and 252,557.54

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Solution

The fourth proportional to 443,543.40, 612,095.80 and 252,557.54 is: 348,532.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,543.40 : 612,095.80 = 252,557.54 : x
  2. Step 2: Convert to fraction form
    443,543.40/612,095.80 = 252,557.54/x
  3. Step 3: Cross multiply
    443,543.40x = 612,095.80 × 252,557.54
  4. Step 4: Simplify right side
    443,543.40x = 154,589,409,492.33
  5. Step 5: Solve for x
    x = 154,589,409,492.33/443,543.40
  6. Step 6: Final answer
    x = 348,532.77

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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.