Home / 628,554.25-867,388.23-342,068.20

Finding the Fourth Proportional to 628,554.25, 867,388.23 and 342,068.20

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Solution

The fourth proportional to 628,554.25, 867,388.23 and 342,068.20 is: 472,045.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,554.25 : 867,388.23 = 342,068.20 : x
  2. Step 2: Convert to fraction form
    628,554.25/867,388.23 = 342,068.20/x
  3. Step 3: Cross multiply
    628,554.25x = 867,388.23 × 342,068.20
  4. Step 4: Simplify right side
    628,554.25x = 296,705,930,537.29
  5. Step 5: Solve for x
    x = 296,705,930,537.29/628,554.25
  6. Step 6: Final answer
    x = 472,045.06

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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.