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Finding the Fourth Proportional to 692,932, 956,246.16 and 374,980

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Solution

The fourth proportional to 692,932, 956,246.16 and 374,980 is: 517,472.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,932 : 956,246.16 = 374,980 : x
  2. Step 2: Convert to fraction form
    692,932/956,246.16 = 374,980/x
  3. Step 3: Cross multiply
    692,932x = 956,246.16 × 374,980
  4. Step 4: Simplify right side
    692,932x = 358,573,185,076.80
  5. Step 5: Solve for x
    x = 358,573,185,076.80/692,932
  6. Step 6: Final answer
    x = 517,472.40

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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.