Home / 1,107,388.86-1,528,337.55-624,072.80

Finding the Fourth Proportional to 1,107,388.86, 1,528,337.55 and 624,072.80

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Solution

The fourth proportional to 1,107,388.86, 1,528,337.55 and 624,072.80 is: 861,299.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,388.86 : 1,528,337.55 = 624,072.80 : x
  2. Step 2: Convert to fraction form
    1,107,388.86/1,528,337.55 = 624,072.80/x
  3. Step 3: Cross multiply
    1,107,388.86x = 1,528,337.55 × 624,072.80
  4. Step 4: Simplify right side
    1,107,388.86x = 953,793,886,531.95
  5. Step 5: Solve for x
    x = 953,793,886,531.95/1,107,388.86
  6. Step 6: Final answer
    x = 861,299.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.