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Finding the Fourth Proportional to 882,855.04, 1,218,471.12 and 520,162.96

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Solution

The fourth proportional to 882,855.04, 1,218,471.12 and 520,162.96 is: 717,902.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    882,855.04 : 1,218,471.12 = 520,162.96 : x
  2. Step 2: Convert to fraction form
    882,855.04/1,218,471.12 = 520,162.96/x
  3. Step 3: Cross multiply
    882,855.04x = 1,218,471.12 × 520,162.96
  4. Step 4: Simplify right side
    882,855.04x = 633,803,544,453.72
  5. Step 5: Solve for x
    x = 633,803,544,453.72/882,855.04
  6. Step 6: Final answer
    x = 717,902.16

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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.