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Finding the Fourth Proportional to 415,295.85, 623,088.33 and 131,030.28

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Solution

The fourth proportional to 415,295.85, 623,088.33 and 131,030.28 is: 196,591.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,295.85 : 623,088.33 = 131,030.28 : x
  2. Step 2: Convert to fraction form
    415,295.85/623,088.33 = 131,030.28/x
  3. Step 3: Cross multiply
    415,295.85x = 623,088.33 × 131,030.28
  4. Step 4: Simplify right side
    415,295.85x = 81,643,438,344.63
  5. Step 5: Solve for x
    x = 81,643,438,344.63/415,295.85
  6. Step 6: Final answer
    x = 196,591.03

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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.