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Finding the Fourth Proportional to 460,055.40, 690,104.70 and 144,522.60

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Solution

The fourth proportional to 460,055.40, 690,104.70 and 144,522.60 is: 216,790.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,055.40 : 690,104.70 = 144,522.60 : x
  2. Step 2: Convert to fraction form
    460,055.40/690,104.70 = 144,522.60/x
  3. Step 3: Cross multiply
    460,055.40x = 690,104.70 × 144,522.60
  4. Step 4: Simplify right side
    460,055.40x = 99,735,725,516.22
  5. Step 5: Solve for x
    x = 99,735,725,516.22/460,055.40
  6. Step 6: Final answer
    x = 216,790.69

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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.