Home / 343,485.90-473,993.78-190,510.56

Finding the Fourth Proportional to 343,485.90, 473,993.78 and 190,510.56

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Solution

The fourth proportional to 343,485.90, 473,993.78 and 190,510.56 is: 262,895.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,485.90 : 473,993.78 = 190,510.56 : x
  2. Step 2: Convert to fraction form
    343,485.90/473,993.78 = 190,510.56/x
  3. Step 3: Cross multiply
    343,485.90x = 473,993.78 × 190,510.56
  4. Step 4: Simplify right side
    343,485.90x = 90,300,819,511.76
  5. Step 5: Solve for x
    x = 90,300,819,511.76/343,485.90
  6. Step 6: Final answer
    x = 262,895.27

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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.