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Finding the Fourth Proportional to 371,709.90, 560,063.58 and 336,210.72

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Solution

The fourth proportional to 371,709.90, 560,063.58 and 336,210.72 is: 506,576.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,709.90 : 560,063.58 = 336,210.72 : x
  2. Step 2: Convert to fraction form
    371,709.90/560,063.58 = 336,210.72/x
  3. Step 3: Cross multiply
    371,709.90x = 560,063.58 × 336,210.72
  4. Step 4: Simplify right side
    371,709.90x = 188,299,379,477.58
  5. Step 5: Solve for x
    x = 188,299,379,477.58/371,709.90
  6. Step 6: Final answer
    x = 506,576.18

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.