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Finding the Fourth Proportional to 646,329.92, 969,600 and 190,967.36

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Solution

The fourth proportional to 646,329.92, 969,600 and 190,967.36 is: 286,482.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,329.92 : 969,600 = 190,967.36 : x
  2. Step 2: Convert to fraction form
    646,329.92/969,600 = 190,967.36/x
  3. Step 3: Cross multiply
    646,329.92x = 969,600 × 190,967.36
  4. Step 4: Simplify right side
    646,329.92x = 185,161,952,256
  5. Step 5: Solve for x
    x = 185,161,952,256/646,329.92
  6. Step 6: Final answer
    x = 286,482.10

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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.