Home / 623,370.27-860,677.88-397,321.95

Finding the Fourth Proportional to 623,370.27, 860,677.88 and 397,321.95

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Solution

The fourth proportional to 623,370.27, 860,677.88 and 397,321.95 is: 548,576.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,370.27 : 860,677.88 = 397,321.95 : x
  2. Step 2: Convert to fraction form
    623,370.27/860,677.88 = 397,321.95/x
  3. Step 3: Cross multiply
    623,370.27x = 860,677.88 × 397,321.95
  4. Step 4: Simplify right side
    623,370.27x = 341,966,211,616.86
  5. Step 5: Solve for x
    x = 341,966,211,616.86/623,370.27
  6. Step 6: Final answer
    x = 548,576.39

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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.