Home / 941,808.90-1,299,699.09-512,090.70

Finding the Fourth Proportional to 941,808.90, 1,299,699.09 and 512,090.70

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Solution

The fourth proportional to 941,808.90, 1,299,699.09 and 512,090.70 is: 706,686.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    941,808.90 : 1,299,699.09 = 512,090.70 : x
  2. Step 2: Convert to fraction form
    941,808.90/1,299,699.09 = 512,090.70/x
  3. Step 3: Cross multiply
    941,808.90x = 1,299,699.09 × 512,090.70
  4. Step 4: Simplify right side
    941,808.90x = 665,563,816,787.46
  5. Step 5: Solve for x
    x = 665,563,816,787.46/941,808.90
  6. Step 6: Final answer
    x = 706,686.69

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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.