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Finding the Fourth Proportional to 572,713.16, 790,362.24 and 343,194.80

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Solution

The fourth proportional to 572,713.16, 790,362.24 and 343,194.80 is: 473,619.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,713.16 : 790,362.24 = 343,194.80 : x
  2. Step 2: Convert to fraction form
    572,713.16/790,362.24 = 343,194.80/x
  3. Step 3: Cross multiply
    572,713.16x = 790,362.24 × 343,194.80
  4. Step 4: Simplify right side
    572,713.16x = 271,248,210,884.35
  5. Step 5: Solve for x
    x = 271,248,210,884.35/572,713.16
  6. Step 6: Final answer
    x = 473,619.66

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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.