Home / 770,180.40-1,152,160.20-666,154.80

Finding the Fourth Proportional to 770,180.40, 1,152,160.20 and 666,154.80

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Solution

The fourth proportional to 770,180.40, 1,152,160.20 and 666,154.80 is: 996,541.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,180.40 : 1,152,160.20 = 666,154.80 : x
  2. Step 2: Convert to fraction form
    770,180.40/1,152,160.20 = 666,154.80/x
  3. Step 3: Cross multiply
    770,180.40x = 1,152,160.20 × 666,154.80
  4. Step 4: Simplify right side
    770,180.40x = 767,517,047,598.96
  5. Step 5: Solve for x
    x = 767,517,047,598.96/770,180.40
  6. Step 6: Final answer
    x = 996,541.91

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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.