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Finding the Fourth Proportional to 443,695.71, 612,595.65 and 262,465.84

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Solution

The fourth proportional to 443,695.71, 612,595.65 and 262,465.84 is: 362,377.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,695.71 : 612,595.65 = 262,465.84 : x
  2. Step 2: Convert to fraction form
    443,695.71/612,595.65 = 262,465.84/x
  3. Step 3: Cross multiply
    443,695.71x = 612,595.65 × 262,465.84
  4. Step 4: Simplify right side
    443,695.71x = 160,785,431,857.60
  5. Step 5: Solve for x
    x = 160,785,431,857.60/443,695.71
  6. Step 6: Final answer
    x = 362,377.70

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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.