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Finding the Fourth Proportional to 522,482.78, 784,073.68 and 190,058.78

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Solution

The fourth proportional to 522,482.78, 784,073.68 and 190,058.78 is: 285,215.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,482.78 : 784,073.68 = 190,058.78 : x
  2. Step 2: Convert to fraction form
    522,482.78/784,073.68 = 190,058.78/x
  3. Step 3: Cross multiply
    522,482.78x = 784,073.68 × 190,058.78
  4. Step 4: Simplify right side
    522,482.78x = 149,020,087,050.91
  5. Step 5: Solve for x
    x = 149,020,087,050.91/522,482.78
  6. Step 6: Final answer
    x = 285,215.31

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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.