Home / 628,548.25-867,379.96-342,062.19

Finding the Fourth Proportional to 628,548.25, 867,379.96 and 342,062.19

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Solution

The fourth proportional to 628,548.25, 867,379.96 and 342,062.19 is: 472,036.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,548.25 : 867,379.96 = 342,062.19 : x
  2. Step 2: Convert to fraction form
    628,548.25/867,379.96 = 342,062.19/x
  3. Step 3: Cross multiply
    628,548.25x = 867,379.96 × 342,062.19
  4. Step 4: Simplify right side
    628,548.25x = 296,697,888,679.71
  5. Step 5: Solve for x
    x = 296,697,888,679.71/628,548.25
  6. Step 6: Final answer
    x = 472,036.77

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Double scale
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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.