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Finding the Fourth Proportional to 404,741.10, 607,111.65 and 218,117.10

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Solution

The fourth proportional to 404,741.10, 607,111.65 and 218,117.10 is: 327,175.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,741.10 : 607,111.65 = 218,117.10 : x
  2. Step 2: Convert to fraction form
    404,741.10/607,111.65 = 218,117.10/x
  3. Step 3: Cross multiply
    404,741.10x = 607,111.65 × 218,117.10
  4. Step 4: Simplify right side
    404,741.10x = 132,421,432,474.22
  5. Step 5: Solve for x
    x = 132,421,432,474.22/404,741.10
  6. Step 6: Final answer
    x = 327,175.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.