Home / 340,829.40-511,244.10-191,530.20

Finding the Fourth Proportional to 340,829.40, 511,244.10 and 191,530.20

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Solution

The fourth proportional to 340,829.40, 511,244.10 and 191,530.20 is: 287,295.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,829.40 : 511,244.10 = 191,530.20 : x
  2. Step 2: Convert to fraction form
    340,829.40/511,244.10 = 191,530.20/x
  3. Step 3: Cross multiply
    340,829.40x = 511,244.10 × 191,530.20
  4. Step 4: Simplify right side
    340,829.40x = 97,918,684,721.82
  5. Step 5: Solve for x
    x = 97,918,684,721.82/340,829.40
  6. Step 6: Final answer
    x = 287,295.30

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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.