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Finding the Fourth Proportional to 690,397.06, 952,519.62 and 403,714.21

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Solution

The fourth proportional to 690,397.06, 952,519.62 and 403,714.21 is: 556,992.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,397.06 : 952,519.62 = 403,714.21 : x
  2. Step 2: Convert to fraction form
    690,397.06/952,519.62 = 403,714.21/x
  3. Step 3: Cross multiply
    690,397.06x = 952,519.62 × 403,714.21
  4. Step 4: Simplify right side
    690,397.06x = 384,545,705,897.80
  5. Step 5: Solve for x
    x = 384,545,705,897.80/690,397.06
  6. Step 6: Final answer
    x = 556,992.10

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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.