Home / 642,975.98-964,500.43-193,758.89

Finding the Fourth Proportional to 642,975.98, 964,500.43 and 193,758.89

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Solution

The fourth proportional to 642,975.98, 964,500.43 and 193,758.89 is: 290,649.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,975.98 : 964,500.43 = 193,758.89 : x
  2. Step 2: Convert to fraction form
    642,975.98/964,500.43 = 193,758.89/x
  3. Step 3: Cross multiply
    642,975.98x = 964,500.43 × 193,758.89
  4. Step 4: Simplify right side
    642,975.98x = 186,880,534,648.18
  5. Step 5: Solve for x
    x = 186,880,534,648.18/642,975.98
  6. Step 6: Final answer
    x = 290,649.32

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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.