Home / 688,357.92-949,945.84-401,890.08

Finding the Fourth Proportional to 688,357.92, 949,945.84 and 401,890.08

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Solution

The fourth proportional to 688,357.92, 949,945.84 and 401,890.08 is: 554,615.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,357.92 : 949,945.84 = 401,890.08 : x
  2. Step 2: Convert to fraction form
    688,357.92/949,945.84 = 401,890.08/x
  3. Step 3: Cross multiply
    688,357.92x = 949,945.84 × 401,890.08
  4. Step 4: Simplify right side
    688,357.92x = 381,773,809,633.27
  5. Step 5: Solve for x
    x = 381,773,809,633.27/688,357.92
  6. Step 6: Final answer
    x = 554,615.26

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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.