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Finding the Fourth Proportional to 567,448.74, 783,084.51 and 312,809.04

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Solution

The fourth proportional to 567,448.74, 783,084.51 and 312,809.04 is: 431,679.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,448.74 : 783,084.51 = 312,809.04 : x
  2. Step 2: Convert to fraction form
    567,448.74/783,084.51 = 312,809.04/x
  3. Step 3: Cross multiply
    567,448.74x = 783,084.51 × 312,809.04
  4. Step 4: Simplify right side
    567,448.74x = 244,955,913,811.97
  5. Step 5: Solve for x
    x = 244,955,913,811.97/567,448.74
  6. Step 6: Final answer
    x = 431,679.37

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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.