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Finding the Fourth Proportional to 692,919, 956,228.70 and 374,967

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Solution

The fourth proportional to 692,919, 956,228.70 and 374,967 is: 517,454.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,919 : 956,228.70 = 374,967 : x
  2. Step 2: Convert to fraction form
    692,919/956,228.70 = 374,967/x
  3. Step 3: Cross multiply
    692,919x = 956,228.70 × 374,967
  4. Step 4: Simplify right side
    692,919x = 358,554,206,952.90
  5. Step 5: Solve for x
    x = 358,554,206,952.90/692,919
  6. Step 6: Final answer
    x = 517,454.72

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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.