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Finding the Fourth Proportional to 522,412.16, 783,618.32 and 148,386.56

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Solution

The fourth proportional to 522,412.16, 783,618.32 and 148,386.56 is: 222,579.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,412.16 : 783,618.32 = 148,386.56 : x
  2. Step 2: Convert to fraction form
    522,412.16/783,618.32 = 148,386.56/x
  3. Step 3: Cross multiply
    522,412.16x = 783,618.32 × 148,386.56
  4. Step 4: Simplify right side
    522,412.16x = 116,278,426,857.78
  5. Step 5: Solve for x
    x = 116,278,426,857.78/522,412.16
  6. Step 6: Final answer
    x = 222,579.86

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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.