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Finding the Fourth Proportional to 406,665.60, 560,699.67 and 329,967.51

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Solution

The fourth proportional to 406,665.60, 560,699.67 and 329,967.51 is: 454,950.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,665.60 : 560,699.67 = 329,967.51 : x
  2. Step 2: Convert to fraction form
    406,665.60/560,699.67 = 329,967.51/x
  3. Step 3: Cross multiply
    406,665.60x = 560,699.67 × 329,967.51
  4. Step 4: Simplify right side
    406,665.60x = 185,012,673,967.72
  5. Step 5: Solve for x
    x = 185,012,673,967.72/406,665.60
  6. Step 6: Final answer
    x = 454,950.39

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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.