Home / 412,905.10-619,746.45-255,441.10

Finding the Fourth Proportional to 412,905.10, 619,746.45 and 255,441.10

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Solution

The fourth proportional to 412,905.10, 619,746.45 and 255,441.10 is: 383,402.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,905.10 : 619,746.45 = 255,441.10 : x
  2. Step 2: Convert to fraction form
    412,905.10/619,746.45 = 255,441.10/x
  3. Step 3: Cross multiply
    412,905.10x = 619,746.45 × 255,441.10
  4. Step 4: Simplify right side
    412,905.10x = 158,308,714,909.10
  5. Step 5: Solve for x
    x = 158,308,714,909.10/412,905.10
  6. Step 6: Final answer
    x = 383,402.18

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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.