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Finding the Fourth Proportional to 340,685.10, 511,104.45 and 104,038.70

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Solution

The fourth proportional to 340,685.10, 511,104.45 and 104,038.70 is: 156,081.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,685.10 : 511,104.45 = 104,038.70 : x
  2. Step 2: Convert to fraction form
    340,685.10/511,104.45 = 104,038.70/x
  3. Step 3: Cross multiply
    340,685.10x = 511,104.45 × 104,038.70
  4. Step 4: Simplify right side
    340,685.10x = 53,174,642,542.22
  5. Step 5: Solve for x
    x = 53,174,642,542.22/340,685.10
  6. Step 6: Final answer
    x = 156,081.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.