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Finding the Fourth Proportional to 459,783.80, 689,675.70 and 160,164.80

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Solution

The fourth proportional to 459,783.80, 689,675.70 and 160,164.80 is: 240,247.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,783.80 : 689,675.70 = 160,164.80 : x
  2. Step 2: Convert to fraction form
    459,783.80/689,675.70 = 160,164.80/x
  3. Step 3: Cross multiply
    459,783.80x = 689,675.70 × 160,164.80
  4. Step 4: Simplify right side
    459,783.80x = 110,461,770,555.36
  5. Step 5: Solve for x
    x = 110,461,770,555.36/459,783.80
  6. Step 6: Final answer
    x = 240,247.20

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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.