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Finding the Fourth Proportional to 692,901, 956,206.26 and 374,949

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Solution

The fourth proportional to 692,901, 956,206.26 and 374,949 is: 517,431.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,901 : 956,206.26 = 374,949 : x
  2. Step 2: Convert to fraction form
    692,901/956,206.26 = 374,949/x
  3. Step 3: Cross multiply
    692,901x = 956,206.26 × 374,949
  4. Step 4: Simplify right side
    692,901x = 358,528,580,980.74
  5. Step 5: Solve for x
    x = 358,528,580,980.74/692,901
  6. Step 6: Final answer
    x = 517,431.18

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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.