Home / 647,784.64-893,944.01-361,323.18

Finding the Fourth Proportional to 647,784.64, 893,944.01 and 361,323.18

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Solution

The fourth proportional to 647,784.64, 893,944.01 and 361,323.18 is: 498,626.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,784.64 : 893,944.01 = 361,323.18 : x
  2. Step 2: Convert to fraction form
    647,784.64/893,944.01 = 361,323.18/x
  3. Step 3: Cross multiply
    647,784.64x = 893,944.01 × 361,323.18
  4. Step 4: Simplify right side
    647,784.64x = 323,002,693,338.46
  5. Step 5: Solve for x
    x = 323,002,693,338.46/647,784.64
  6. Step 6: Final answer
    x = 498,626.66

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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.