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Finding the Fourth Proportional to 614,860.56, 848,505.78 and 342,928.80

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Solution

The fourth proportional to 614,860.56, 848,505.78 and 342,928.80 is: 473,240.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,860.56 : 848,505.78 = 342,928.80 : x
  2. Step 2: Convert to fraction form
    614,860.56/848,505.78 = 342,928.80/x
  3. Step 3: Cross multiply
    614,860.56x = 848,505.78 × 342,928.80
  4. Step 4: Simplify right side
    614,860.56x = 290,977,068,928.46
  5. Step 5: Solve for x
    x = 290,977,068,928.46/614,860.56
  6. Step 6: Final answer
    x = 473,240.74

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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.