Home / 628,754.78-867,547.04-374,056.22

Finding the Fourth Proportional to 628,754.78, 867,547.04 and 374,056.22

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Solution

The fourth proportional to 628,754.78, 867,547.04 and 374,056.22 is: 516,117.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,754.78 : 867,547.04 = 374,056.22 : x
  2. Step 2: Convert to fraction form
    628,754.78/867,547.04 = 374,056.22/x
  3. Step 3: Cross multiply
    628,754.78x = 867,547.04 × 374,056.22
  4. Step 4: Simplify right side
    628,754.78x = 324,511,366,454.59
  5. Step 5: Solve for x
    x = 324,511,366,454.59/628,754.78
  6. Step 6: Final answer
    x = 516,117.53

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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.