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Finding the Fourth Proportional to 492,091.90, 737,554.65 and 255,312.70

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Solution

The fourth proportional to 492,091.90, 737,554.65 and 255,312.70 is: 382,666.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,091.90 : 737,554.65 = 255,312.70 : x
  2. Step 2: Convert to fraction form
    492,091.90/737,554.65 = 255,312.70/x
  3. Step 3: Cross multiply
    492,091.90x = 737,554.65 × 255,312.70
  4. Step 4: Simplify right side
    492,091.90x = 188,307,069,089.06
  5. Step 5: Solve for x
    x = 188,307,069,089.06/492,091.90
  6. Step 6: Final answer
    x = 382,666.47

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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.