Home / 646,256.80-891,799.76-359,769.44

Finding the Fourth Proportional to 646,256.80, 891,799.76 and 359,769.44

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Solution

The fourth proportional to 646,256.80, 891,799.76 and 359,769.44 is: 496,462.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,256.80 : 891,799.76 = 359,769.44 : x
  2. Step 2: Convert to fraction form
    646,256.80/891,799.76 = 359,769.44/x
  3. Step 3: Cross multiply
    646,256.80x = 891,799.76 × 359,769.44
  4. Step 4: Simplify right side
    646,256.80x = 320,842,300,247.33
  5. Step 5: Solve for x
    x = 320,842,300,247.33/646,256.80
  6. Step 6: Final answer
    x = 496,462.55

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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.