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Finding the Fourth Proportional to 360,012.70, 540,019.05 and 194,124.70

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Solution

The fourth proportional to 360,012.70, 540,019.05 and 194,124.70 is: 291,187.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,012.70 : 540,019.05 = 194,124.70 : x
  2. Step 2: Convert to fraction form
    360,012.70/540,019.05 = 194,124.70/x
  3. Step 3: Cross multiply
    360,012.70x = 540,019.05 × 194,124.70
  4. Step 4: Simplify right side
    360,012.70x = 104,831,036,075.54
  5. Step 5: Solve for x
    x = 104,831,036,075.54/360,012.70
  6. Step 6: Final answer
    x = 291,187.05

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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.