Home / 919,995.77-1,269,594.07-512,088.89

Finding the Fourth Proportional to 919,995.77, 1,269,594.07 and 512,088.89

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Solution

The fourth proportional to 919,995.77, 1,269,594.07 and 512,088.89 is: 706,682.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,995.77 : 1,269,594.07 = 512,088.89 : x
  2. Step 2: Convert to fraction form
    919,995.77/1,269,594.07 = 512,088.89/x
  3. Step 3: Cross multiply
    919,995.77x = 1,269,594.07 × 512,088.89
  4. Step 4: Simplify right side
    919,995.77x = 650,145,010,428.69
  5. Step 5: Solve for x
    x = 650,145,010,428.69/919,995.77
  6. Step 6: Final answer
    x = 706,682.61

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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.