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Finding the Fourth Proportional to 583,788.89, 805,210.71 and 379,458.70

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Solution

The fourth proportional to 583,788.89, 805,210.71 and 379,458.70 is: 523,381.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,788.89 : 805,210.71 = 379,458.70 : x
  2. Step 2: Convert to fraction form
    583,788.89/805,210.71 = 379,458.70/x
  3. Step 3: Cross multiply
    583,788.89x = 805,210.71 × 379,458.70
  4. Step 4: Simplify right side
    583,788.89x = 305,544,207,229.65
  5. Step 5: Solve for x
    x = 305,544,207,229.65/583,788.89
  6. Step 6: Final answer
    x = 523,381.33

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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.