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Finding the Fourth Proportional to 567,397.69, 783,008.81 and 312,754.34

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Solution

The fourth proportional to 567,397.69, 783,008.81 and 312,754.34 is: 431,600.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,397.69 : 783,008.81 = 312,754.34 : x
  2. Step 2: Convert to fraction form
    567,397.69/783,008.81 = 312,754.34/x
  3. Step 3: Cross multiply
    567,397.69x = 783,008.81 × 312,754.34
  4. Step 4: Simplify right side
    567,397.69x = 244,889,405,152.32
  5. Step 5: Solve for x
    x = 244,889,405,152.32/567,397.69
  6. Step 6: Final answer
    x = 431,600.99

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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.