Home / 343,478.12-474,056.55-190,565.55

Finding the Fourth Proportional to 343,478.12, 474,056.55 and 190,565.55

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Solution

The fourth proportional to 343,478.12, 474,056.55 and 190,565.55 is: 263,011.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,478.12 : 474,056.55 = 190,565.55 : x
  2. Step 2: Convert to fraction form
    343,478.12/474,056.55 = 190,565.55/x
  3. Step 3: Cross multiply
    343,478.12x = 474,056.55 × 190,565.55
  4. Step 4: Simplify right side
    343,478.12x = 90,338,847,181.85
  5. Step 5: Solve for x
    x = 90,338,847,181.85/343,478.12
  6. Step 6: Final answer
    x = 263,011.95

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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.