Home / 623,433.57-860,321.10-351,499.11

Finding the Fourth Proportional to 623,433.57, 860,321.10 and 351,499.11

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Solution

The fourth proportional to 623,433.57, 860,321.10 and 351,499.11 is: 485,059.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,433.57 : 860,321.10 = 351,499.11 : x
  2. Step 2: Convert to fraction form
    623,433.57/860,321.10 = 351,499.11/x
  3. Step 3: Cross multiply
    623,433.57x = 860,321.10 × 351,499.11
  4. Step 4: Simplify right side
    623,433.57x = 302,402,100,964.22
  5. Step 5: Solve for x
    x = 302,402,100,964.22/623,433.57
  6. Step 6: Final answer
    x = 485,059.06

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Double scale
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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.