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Finding the Fourth Proportional to 443,682.61, 612,061.57 and 262,306.19

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Solution

The fourth proportional to 443,682.61, 612,061.57 and 262,306.19 is: 361,852.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,682.61 : 612,061.57 = 262,306.19 : x
  2. Step 2: Convert to fraction form
    443,682.61/612,061.57 = 262,306.19/x
  3. Step 3: Cross multiply
    443,682.61x = 612,061.57 × 262,306.19
  4. Step 4: Simplify right side
    443,682.61x = 160,547,538,472.12
  5. Step 5: Solve for x
    x = 160,547,538,472.12/443,682.61
  6. Step 6: Final answer
    x = 361,852.22

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Half scale
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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.