Home / 839,568,085.60-1,259,352,128.40-805,555,861.60

Finding the Fourth Proportional to 839,568,085.60, 1,259,352,128.40 and 805,555,861.60

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Solution

The fourth proportional to 839,568,085.60, 1,259,352,128.40 and 805,555,861.60 is: 1,208,333,792.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,568,085.60 : 1,259,352,128.40 = 805,555,861.60 : x
  2. Step 2: Convert to fraction form
    839,568,085.60/1,259,352,128.40 = 805,555,861.60/x
  3. Step 3: Cross multiply
    839,568,085.60x = 1,259,352,128.40 × 805,555,861.60
  4. Step 4: Simplify right side
    839,568,085.60x = 1,014,478,488,851,056,000
  5. Step 5: Solve for x
    x = 1,014,478,488,851,056,000/839,568,085.60
  6. Step 6: Final answer
    x = 1,208,333,792.40

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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.