Home / 886,922.70-1,330,384.05-389,258.70

Finding the Fourth Proportional to 886,922.70, 1,330,384.05 and 389,258.70

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Solution

The fourth proportional to 886,922.70, 1,330,384.05 and 389,258.70 is: 583,888.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,922.70 : 1,330,384.05 = 389,258.70 : x
  2. Step 2: Convert to fraction form
    886,922.70/1,330,384.05 = 389,258.70/x
  3. Step 3: Cross multiply
    886,922.70x = 1,330,384.05 × 389,258.70
  4. Step 4: Simplify right side
    886,922.70x = 517,863,565,803.74
  5. Step 5: Solve for x
    x = 517,863,565,803.74/886,922.70
  6. Step 6: Final answer
    x = 583,888.05

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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.