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Finding the Fourth Proportional to 707,603.45, 976,236.30 and 401,502.56

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Solution

The fourth proportional to 707,603.45, 976,236.30 and 401,502.56 is: 553,928.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,603.45 : 976,236.30 = 401,502.56 : x
  2. Step 2: Convert to fraction form
    707,603.45/976,236.30 = 401,502.56/x
  3. Step 3: Cross multiply
    707,603.45x = 976,236.30 × 401,502.56
  4. Step 4: Simplify right side
    707,603.45x = 391,961,368,733.75
  5. Step 5: Solve for x
    x = 391,961,368,733.75/707,603.45
  6. Step 6: Final answer
    x = 553,928.01

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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.