Home / 962,582.70-1,328,587.20-640,306.38

Finding the Fourth Proportional to 962,582.70, 1,328,587.20 and 640,306.38

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Solution

The fourth proportional to 962,582.70, 1,328,587.20 and 640,306.38 is: 883,771.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    962,582.70 : 1,328,587.20 = 640,306.38 : x
  2. Step 2: Convert to fraction form
    962,582.70/1,328,587.20 = 640,306.38/x
  3. Step 3: Cross multiply
    962,582.70x = 1,328,587.20 × 640,306.38
  4. Step 4: Simplify right side
    962,582.70x = 850,702,860,546.34
  5. Step 5: Solve for x
    x = 850,702,860,546.34/962,582.70
  6. Step 6: Final answer
    x = 883,771.19

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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.