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Finding the Fourth Proportional to 473,135.80, 707,975.70 and 348,719.80

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Solution

The fourth proportional to 473,135.80, 707,975.70 and 348,719.80 is: 521,806.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,135.80 : 707,975.70 = 348,719.80 : x
  2. Step 2: Convert to fraction form
    473,135.80/707,975.70 = 348,719.80/x
  3. Step 3: Cross multiply
    473,135.80x = 707,975.70 × 348,719.80
  4. Step 4: Simplify right side
    473,135.80x = 246,885,144,508.86
  5. Step 5: Solve for x
    x = 246,885,144,508.86/473,135.80
  6. Step 6: Final answer
    x = 521,806.10

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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.