Home / 985,584.90-1,477,283.85-386,346.90

Finding the Fourth Proportional to 985,584.90, 1,477,283.85 and 386,346.90

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Solution

The fourth proportional to 985,584.90, 1,477,283.85 and 386,346.90 is: 579,091.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,584.90 : 1,477,283.85 = 386,346.90 : x
  2. Step 2: Convert to fraction form
    985,584.90/1,477,283.85 = 386,346.90/x
  3. Step 3: Cross multiply
    985,584.90x = 1,477,283.85 × 386,346.90
  4. Step 4: Simplify right side
    985,584.90x = 570,744,035,867.57
  5. Step 5: Solve for x
    x = 570,744,035,867.57/985,584.90
  6. Step 6: Final answer
    x = 579,091.70

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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.