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Finding the Fourth Proportional to 296,678.80, 445,061.40 and 96,950.80

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Solution

The fourth proportional to 296,678.80, 445,061.40 and 96,950.80 is: 145,440.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,678.80 : 445,061.40 = 96,950.80 : x
  2. Step 2: Convert to fraction form
    296,678.80/445,061.40 = 96,950.80/x
  3. Step 3: Cross multiply
    296,678.80x = 445,061.40 × 96,950.80
  4. Step 4: Simplify right side
    296,678.80x = 43,149,058,779.12
  5. Step 5: Solve for x
    x = 43,149,058,779.12/296,678.80
  6. Step 6: Final answer
    x = 145,440.32

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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.