Home / 623,516.49-860,379.65-351,568.19

Finding the Fourth Proportional to 623,516.49, 860,379.65 and 351,568.19

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Solution

The fourth proportional to 623,516.49, 860,379.65 and 351,568.19 is: 485,122.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,516.49 : 860,379.65 = 351,568.19 : x
  2. Step 2: Convert to fraction form
    623,516.49/860,379.65 = 351,568.19/x
  3. Step 3: Cross multiply
    623,516.49x = 860,379.65 × 351,568.19
  4. Step 4: Simplify right side
    623,516.49x = 302,482,110,203.59
  5. Step 5: Solve for x
    x = 302,482,110,203.59/623,516.49
  6. Step 6: Final answer
    x = 485,122.87

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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.