Home / 679,156.84-1,017,335.42-397,821.16

Finding the Fourth Proportional to 679,156.84, 1,017,335.42 and 397,821.16

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Solution

The fourth proportional to 679,156.84, 1,017,335.42 and 397,821.16 is: 595,911.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,156.84 : 1,017,335.42 = 397,821.16 : x
  2. Step 2: Convert to fraction form
    679,156.84/1,017,335.42 = 397,821.16/x
  3. Step 3: Cross multiply
    679,156.84x = 1,017,335.42 × 397,821.16
  4. Step 4: Simplify right side
    679,156.84x = 404,717,556,893.49
  5. Step 5: Solve for x
    x = 404,717,556,893.49/679,156.84
  6. Step 6: Final answer
    x = 595,911.77

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Double scale
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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.