Home / 638,966.32-881,774.44-352,485.84

Finding the Fourth Proportional to 638,966.32, 881,774.44 and 352,485.84

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Solution

The fourth proportional to 638,966.32, 881,774.44 and 352,485.84 is: 486,430.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,966.32 : 881,774.44 = 352,485.84 : x
  2. Step 2: Convert to fraction form
    638,966.32/881,774.44 = 352,485.84/x
  3. Step 3: Cross multiply
    638,966.32x = 881,774.44 × 352,485.84
  4. Step 4: Simplify right side
    638,966.32x = 310,813,004,173.93
  5. Step 5: Solve for x
    x = 310,813,004,173.93/638,966.32
  6. Step 6: Final answer
    x = 486,430.97

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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.