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Finding the Fourth Proportional to 544,091.68, 750,916.60 and 305,673.76

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Solution

The fourth proportional to 544,091.68, 750,916.60 and 305,673.76 is: 421,869.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,091.68 : 750,916.60 = 305,673.76 : x
  2. Step 2: Convert to fraction form
    544,091.68/750,916.60 = 305,673.76/x
  3. Step 3: Cross multiply
    544,091.68x = 750,916.60 × 305,673.76
  4. Step 4: Simplify right side
    544,091.68x = 229,535,500,568.42
  5. Step 5: Solve for x
    x = 229,535,500,568.42/544,091.68
  6. Step 6: Final answer
    x = 421,869.16

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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.