Home / 761,622.07-1,051,038.45-422,112.19

Finding the Fourth Proportional to 761,622.07, 1,051,038.45 and 422,112.19

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Solution

The fourth proportional to 761,622.07, 1,051,038.45 and 422,112.19 is: 582,514.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,622.07 : 1,051,038.45 = 422,112.19 : x
  2. Step 2: Convert to fraction form
    761,622.07/1,051,038.45 = 422,112.19/x
  3. Step 3: Cross multiply
    761,622.07x = 1,051,038.45 × 422,112.19
  4. Step 4: Simplify right side
    761,622.07x = 443,656,134,537.95
  5. Step 5: Solve for x
    x = 443,656,134,537.95/761,622.07
  6. Step 6: Final answer
    x = 582,514.81

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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.