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Finding the Fourth Proportional to 406,666.98, 560,701.57 and 329,968.89

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Solution

The fourth proportional to 406,666.98, 560,701.57 and 329,968.89 is: 454,952.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,666.98 : 560,701.57 = 329,968.89 : x
  2. Step 2: Convert to fraction form
    406,666.98/560,701.57 = 329,968.89/x
  3. Step 3: Cross multiply
    406,666.98x = 560,701.57 × 329,968.89
  4. Step 4: Simplify right side
    406,666.98x = 185,014,074,674.16
  5. Step 5: Solve for x
    x = 185,014,074,674.16/406,666.98
  6. Step 6: Final answer
    x = 454,952.29

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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.