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Finding the Fourth Proportional to 692,895, 956,197.98 and 374,943

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Solution

The fourth proportional to 692,895, 956,197.98 and 374,943 is: 517,422.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,895 : 956,197.98 = 374,943 : x
  2. Step 2: Convert to fraction form
    692,895/956,197.98 = 374,943/x
  3. Step 3: Cross multiply
    692,895x = 956,197.98 × 374,943
  4. Step 4: Simplify right side
    692,895x = 358,519,739,215.14
  5. Step 5: Solve for x
    x = 358,519,739,215.14/692,895
  6. Step 6: Final answer
    x = 517,422.90

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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.