Home / 688,666.78-1,033,059.69-190,030.78

Finding the Fourth Proportional to 688,666.78, 1,033,059.69 and 190,030.78

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Solution

The fourth proportional to 688,666.78, 1,033,059.69 and 190,030.78 is: 285,062.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,666.78 : 1,033,059.69 = 190,030.78 : x
  2. Step 2: Convert to fraction form
    688,666.78/1,033,059.69 = 190,030.78/x
  3. Step 3: Cross multiply
    688,666.78x = 1,033,059.69 × 190,030.78
  4. Step 4: Simplify right side
    688,666.78x = 196,313,138,677.26
  5. Step 5: Solve for x
    x = 196,313,138,677.26/688,666.78
  6. Step 6: Final answer
    x = 285,062.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.