Home / 891,619.36-1,230,434.58-509,654.34

Finding the Fourth Proportional to 891,619.36, 1,230,434.58 and 509,654.34

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Solution

The fourth proportional to 891,619.36, 1,230,434.58 and 509,654.34 is: 703,322.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,619.36 : 1,230,434.58 = 509,654.34 : x
  2. Step 2: Convert to fraction form
    891,619.36/1,230,434.58 = 509,654.34/x
  3. Step 3: Cross multiply
    891,619.36x = 1,230,434.58 × 509,654.34
  4. Step 4: Simplify right side
    891,619.36x = 627,096,323,783.08
  5. Step 5: Solve for x
    x = 627,096,323,783.08/891,619.36
  6. Step 6: Final answer
    x = 703,322.91

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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.