Home / 1,640,706.60-2,461,059.90-442,813.80

Finding the Fourth Proportional to 1,640,706.60, 2,461,059.90 and 442,813.80

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Solution

The fourth proportional to 1,640,706.60, 2,461,059.90 and 442,813.80 is: 664,220.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,706.60 : 2,461,059.90 = 442,813.80 : x
  2. Step 2: Convert to fraction form
    1,640,706.60/2,461,059.90 = 442,813.80/x
  3. Step 3: Cross multiply
    1,640,706.60x = 2,461,059.90 × 442,813.80
  4. Step 4: Simplify right side
    1,640,706.60x = 1,089,791,286,346.62
  5. Step 5: Solve for x
    x = 1,089,791,286,346.62/1,640,706.60
  6. Step 6: Final answer
    x = 664,220.70

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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.