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Finding the Fourth Proportional to 614,844.70, 848,487.18 and 342,930.21

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Solution

The fourth proportional to 614,844.70, 848,487.18 and 342,930.21 is: 473,244.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,844.70 : 848,487.18 = 342,930.21 : x
  2. Step 2: Convert to fraction form
    614,844.70/848,487.18 = 342,930.21/x
  3. Step 3: Cross multiply
    614,844.70x = 848,487.18 × 342,930.21
  4. Step 4: Simplify right side
    614,844.70x = 290,971,886,819.71
  5. Step 5: Solve for x
    x = 290,971,886,819.71/614,844.70
  6. Step 6: Final answer
    x = 473,244.52

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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.