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Finding the Fourth Proportional to 340,810.57, 470,316.45 and 185,761.72

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Solution

The fourth proportional to 340,810.57, 470,316.45 and 185,761.72 is: 256,350.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,810.57 : 470,316.45 = 185,761.72 : x
  2. Step 2: Convert to fraction form
    340,810.57/470,316.45 = 185,761.72/x
  3. Step 3: Cross multiply
    340,810.57x = 470,316.45 × 185,761.72
  4. Step 4: Simplify right side
    340,810.57x = 87,366,792,696.29
  5. Step 5: Solve for x
    x = 87,366,792,696.29/340,810.57
  6. Step 6: Final answer
    x = 256,350.01

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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.