Home / 891,618.36-1,230,433.20-509,653.34

Finding the Fourth Proportional to 891,618.36, 1,230,433.20 and 509,653.34

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Solution

The fourth proportional to 891,618.36, 1,230,433.20 and 509,653.34 is: 703,321.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,618.36 : 1,230,433.20 = 509,653.34 : x
  2. Step 2: Convert to fraction form
    891,618.36/1,230,433.20 = 509,653.34/x
  3. Step 3: Cross multiply
    891,618.36x = 1,230,433.20 × 509,653.34
  4. Step 4: Simplify right side
    891,618.36x = 627,094,390,026.89
  5. Step 5: Solve for x
    x = 627,094,390,026.89/891,618.36
  6. Step 6: Final answer
    x = 703,321.53

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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.