Home / 623,439.23-860,328.86-351,504.72

Finding the Fourth Proportional to 623,439.23, 860,328.86 and 351,504.72

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Solution

The fourth proportional to 623,439.23, 860,328.86 and 351,504.72 is: 485,066.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,439.23 : 860,328.86 = 351,504.72 : x
  2. Step 2: Convert to fraction form
    623,439.23/860,328.86 = 351,504.72/x
  3. Step 3: Cross multiply
    623,439.23x = 860,328.86 × 351,504.72
  4. Step 4: Simplify right side
    623,439.23x = 302,409,653,284.70
  5. Step 5: Solve for x
    x = 302,409,653,284.70/623,439.23
  6. Step 6: Final answer
    x = 485,066.77

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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.