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Finding the Fourth Proportional to 286,641.40, 429,443.70 and 233,764.60

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Solution

The fourth proportional to 286,641.40, 429,443.70 and 233,764.60 is: 350,224.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,641.40 : 429,443.70 = 233,764.60 : x
  2. Step 2: Convert to fraction form
    286,641.40/429,443.70 = 233,764.60/x
  3. Step 3: Cross multiply
    286,641.40x = 429,443.70 × 233,764.60
  4. Step 4: Simplify right side
    286,641.40x = 100,388,734,753.02
  5. Step 5: Solve for x
    x = 100,388,734,753.02/286,641.40
  6. Step 6: Final answer
    x = 350,224.13

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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.