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Finding the Fourth Proportional to 294,133.80, 441,200.70 and 266,140.20

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Solution

The fourth proportional to 294,133.80, 441,200.70 and 266,140.20 is: 399,210.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,133.80 : 441,200.70 = 266,140.20 : x
  2. Step 2: Convert to fraction form
    294,133.80/441,200.70 = 266,140.20/x
  3. Step 3: Cross multiply
    294,133.80x = 441,200.70 × 266,140.20
  4. Step 4: Simplify right side
    294,133.80x = 117,421,242,538.14
  5. Step 5: Solve for x
    x = 117,421,242,538.14/294,133.80
  6. Step 6: Final answer
    x = 399,210.30

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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.