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Finding the Fourth Proportional to 583,291.75, 804,942.62 and 315,019.75

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Solution

The fourth proportional to 583,291.75, 804,942.62 and 315,019.75 is: 434,727.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,291.75 : 804,942.62 = 315,019.75 : x
  2. Step 2: Convert to fraction form
    583,291.75/804,942.62 = 315,019.75/x
  3. Step 3: Cross multiply
    583,291.75x = 804,942.62 × 315,019.75
  4. Step 4: Simplify right side
    583,291.75x = 253,572,822,916.75
  5. Step 5: Solve for x
    x = 253,572,822,916.75/583,291.75
  6. Step 6: Final answer
    x = 434,727.26

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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.