Home / 623,726.56-860,707.31-351,778.20

Finding the Fourth Proportional to 623,726.56, 860,707.31 and 351,778.20

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Solution

The fourth proportional to 623,726.56, 860,707.31 and 351,778.20 is: 485,433.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,726.56 : 860,707.31 = 351,778.20 : x
  2. Step 2: Convert to fraction form
    623,726.56/860,707.31 = 351,778.20/x
  3. Step 3: Cross multiply
    623,726.56x = 860,707.31 × 351,778.20
  4. Step 4: Simplify right side
    623,726.56x = 302,778,068,238.64
  5. Step 5: Solve for x
    x = 302,778,068,238.64/623,726.56
  6. Step 6: Final answer
    x = 485,433.98

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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.