Home / 1,188,518.02-1,782,330.20-430,172.12

Finding the Fourth Proportional to 1,188,518.02, 1,782,330.20 and 430,172.12

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Solution

The fourth proportional to 1,188,518.02, 1,782,330.20 and 430,172.12 is: 645,096.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,518.02 : 1,782,330.20 = 430,172.12 : x
  2. Step 2: Convert to fraction form
    1,188,518.02/1,782,330.20 = 430,172.12/x
  3. Step 3: Cross multiply
    1,188,518.02x = 1,782,330.20 × 430,172.12
  4. Step 4: Simplify right side
    1,188,518.02x = 766,708,760,674.02
  5. Step 5: Solve for x
    x = 766,708,760,674.02/1,188,518.02
  6. Step 6: Final answer
    x = 645,096.45

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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.