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Finding the Fourth Proportional to 360,011.80, 540,017.70 and 220,043.80

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Solution

The fourth proportional to 360,011.80, 540,017.70 and 220,043.80 is: 330,065.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,011.80 : 540,017.70 = 220,043.80 : x
  2. Step 2: Convert to fraction form
    360,011.80/540,017.70 = 220,043.80/x
  3. Step 3: Cross multiply
    360,011.80x = 540,017.70 × 220,043.80
  4. Step 4: Simplify right side
    360,011.80x = 118,827,546,775.26
  5. Step 5: Solve for x
    x = 118,827,546,775.26/360,011.80
  6. Step 6: Final answer
    x = 330,065.70

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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.