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Finding the Fourth Proportional to 586,386.27, 809,289.38 and 328,361.48

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Solution

The fourth proportional to 586,386.27, 809,289.38 and 328,361.48 is: 453,181.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,386.27 : 809,289.38 = 328,361.48 : x
  2. Step 2: Convert to fraction form
    586,386.27/809,289.38 = 328,361.48/x
  3. Step 3: Cross multiply
    586,386.27x = 809,289.38 × 328,361.48
  4. Step 4: Simplify right side
    586,386.27x = 265,739,452,876.83
  5. Step 5: Solve for x
    x = 265,739,452,876.83/586,386.27
  6. Step 6: Final answer
    x = 453,181.57

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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.