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Finding the Fourth Proportional to 679,503, 937,714.74 and 373,584.59

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Solution

The fourth proportional to 679,503, 937,714.74 and 373,584.59 is: 515,547.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,503 : 937,714.74 = 373,584.59 : x
  2. Step 2: Convert to fraction form
    679,503/937,714.74 = 373,584.59/x
  3. Step 3: Cross multiply
    679,503x = 937,714.74 × 373,584.59
  4. Step 4: Simplify right side
    679,503x = 350,315,771,991.28
  5. Step 5: Solve for x
    x = 350,315,771,991.28/679,503
  6. Step 6: Final answer
    x = 515,547.06

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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.