Home / 919,790,872.12-1,269,141,580.74-523,290,714.04

Finding the Fourth Proportional to 919,790,872.12, 1,269,141,580.74 and 523,290,714.04

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Solution

The fourth proportional to 919,790,872.12, 1,269,141,580.74 and 523,290,714.04 is: 722,044,569.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,790,872.12 : 1,269,141,580.74 = 523,290,714.04 : x
  2. Step 2: Convert to fraction form
    919,790,872.12/1,269,141,580.74 = 523,290,714.04/x
  3. Step 3: Cross multiply
    919,790,872.12x = 1,269,141,580.74 × 523,290,714.04
  4. Step 4: Simplify right side
    919,790,872.12x = 664,130,004,003,288,960
  5. Step 5: Solve for x
    x = 664,130,004,003,288,960/919,790,872.12
  6. Step 6: Final answer
    x = 722,044,569.19

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.