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Finding the Fourth Proportional to 348,053.55, 522,080.33 and 208,085.55

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Solution

The fourth proportional to 348,053.55, 522,080.33 and 208,085.55 is: 312,128.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,053.55 : 522,080.33 = 208,085.55 : x
  2. Step 2: Convert to fraction form
    348,053.55/522,080.33 = 208,085.55/x
  3. Step 3: Cross multiply
    348,053.55x = 522,080.33 × 208,085.55
  4. Step 4: Simplify right side
    348,053.55x = 108,637,372,612.23
  5. Step 5: Solve for x
    x = 108,637,372,612.23/348,053.55
  6. Step 6: Final answer
    x = 312,128.33

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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.