Home / 628,755.03-867,547.40-374,056.47

Finding the Fourth Proportional to 628,755.03, 867,547.40 and 374,056.47

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Solution

The fourth proportional to 628,755.03, 867,547.40 and 374,056.47 is: 516,117.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,755.03 : 867,547.40 = 374,056.47 : x
  2. Step 2: Convert to fraction form
    628,755.03/867,547.40 = 374,056.47/x
  3. Step 3: Cross multiply
    628,755.03x = 867,547.40 × 374,056.47
  4. Step 4: Simplify right side
    628,755.03x = 324,511,716,131.40
  5. Step 5: Solve for x
    x = 324,511,716,131.40/628,755.03
  6. Step 6: Final answer
    x = 516,117.88

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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.