Home / 939,130.68-1,408,083.60-618,311.46

Finding the Fourth Proportional to 939,130.68, 1,408,083.60 and 618,311.46

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Solution

The fourth proportional to 939,130.68, 1,408,083.60 and 618,311.46 is: 927,063.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,130.68 : 1,408,083.60 = 618,311.46 : x
  2. Step 2: Convert to fraction form
    939,130.68/1,408,083.60 = 618,311.46/x
  3. Step 3: Cross multiply
    939,130.68x = 1,408,083.60 × 618,311.46
  4. Step 4: Simplify right side
    939,130.68x = 870,634,226,518.06
  5. Step 5: Solve for x
    x = 870,634,226,518.06/939,130.68
  6. Step 6: Final answer
    x = 927,063.98

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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.