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Finding the Fourth Proportional to 569,640.48, 786,088.32 and 314,982.96

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Solution

The fourth proportional to 569,640.48, 786,088.32 and 314,982.96 is: 434,667.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,640.48 : 786,088.32 = 314,982.96 : x
  2. Step 2: Convert to fraction form
    569,640.48/786,088.32 = 314,982.96/x
  3. Step 3: Cross multiply
    569,640.48x = 786,088.32 × 314,982.96
  4. Step 4: Simplify right side
    569,640.48x = 247,604,425,855.03
  5. Step 5: Solve for x
    x = 247,604,425,855.03/569,640.48
  6. Step 6: Final answer
    x = 434,667.89

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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.