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Finding the Fourth Proportional to 614,810.48, 848,436.88 and 342,878.72

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Solution

The fourth proportional to 614,810.48, 848,436.88 and 342,878.72 is: 473,171.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,810.48 : 848,436.88 = 342,878.72 : x
  2. Step 2: Convert to fraction form
    614,810.48/848,436.88 = 342,878.72/x
  3. Step 3: Cross multiply
    614,810.48x = 848,436.88 × 342,878.72
  4. Step 4: Simplify right side
    614,810.48x = 290,910,951,415.19
  5. Step 5: Solve for x
    x = 290,910,951,415.19/614,810.48
  6. Step 6: Final answer
    x = 473,171.75

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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.