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Finding the Fourth Proportional to 282,323.40, 423,485.10 and 124,384.20

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Solution

The fourth proportional to 282,323.40, 423,485.10 and 124,384.20 is: 186,576.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,323.40 : 423,485.10 = 124,384.20 : x
  2. Step 2: Convert to fraction form
    282,323.40/423,485.10 = 124,384.20/x
  3. Step 3: Cross multiply
    282,323.40x = 423,485.10 × 124,384.20
  4. Step 4: Simplify right side
    282,323.40x = 52,674,855,375.42
  5. Step 5: Solve for x
    x = 52,674,855,375.42/282,323.40
  6. Step 6: Final answer
    x = 186,576.30

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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.