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Finding the Fourth Proportional to 946,875.80, 1,420,313.70 and 843,656.60

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Solution

The fourth proportional to 946,875.80, 1,420,313.70 and 843,656.60 is: 1,265,484.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    946,875.80 : 1,420,313.70 = 843,656.60 : x
  2. Step 2: Convert to fraction form
    946,875.80/1,420,313.70 = 843,656.60/x
  3. Step 3: Cross multiply
    946,875.80x = 1,420,313.70 × 843,656.60
  4. Step 4: Simplify right side
    946,875.80x = 1,198,257,027,075.42
  5. Step 5: Solve for x
    x = 1,198,257,027,075.42/946,875.80
  6. Step 6: Final answer
    x = 1,265,484.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.