Home / 646,257.22-891,254.34-404,561.80

Finding the Fourth Proportional to 646,257.22, 891,254.34 and 404,561.80

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Solution

The fourth proportional to 646,257.22, 891,254.34 and 404,561.80 is: 557,931.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,257.22 : 891,254.34 = 404,561.80 : x
  2. Step 2: Convert to fraction form
    646,257.22/891,254.34 = 404,561.80/x
  3. Step 3: Cross multiply
    646,257.22x = 891,254.34 × 404,561.80
  4. Step 4: Simplify right side
    646,257.22x = 360,567,460,048.21
  5. Step 5: Solve for x
    x = 360,567,460,048.21/646,257.22
  6. Step 6: Final answer
    x = 557,931.81

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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.