Home / 346,900.20-520,091.10-189,306.60

Finding the Fourth Proportional to 346,900.20, 520,091.10 and 189,306.60

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Solution

The fourth proportional to 346,900.20, 520,091.10 and 189,306.60 is: 283,818.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,900.20 : 520,091.10 = 189,306.60 : x
  2. Step 2: Convert to fraction form
    346,900.20/520,091.10 = 189,306.60/x
  3. Step 3: Cross multiply
    346,900.20x = 520,091.10 × 189,306.60
  4. Step 4: Simplify right side
    346,900.20x = 98,456,677,831.26
  5. Step 5: Solve for x
    x = 98,456,677,831.26/346,900.20
  6. Step 6: Final answer
    x = 283,818.45

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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.