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Finding the Fourth Proportional to 345,613.50, 476,946.63 and 186,637.50

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Solution

The fourth proportional to 345,613.50, 476,946.63 and 186,637.50 is: 257,559.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,613.50 : 476,946.63 = 186,637.50 : x
  2. Step 2: Convert to fraction form
    345,613.50/476,946.63 = 186,637.50/x
  3. Step 3: Cross multiply
    345,613.50x = 476,946.63 × 186,637.50
  4. Step 4: Simplify right side
    345,613.50x = 89,016,126,656.63
  5. Step 5: Solve for x
    x = 89,016,126,656.63/345,613.50
  6. Step 6: Final answer
    x = 257,559.75

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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.