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Finding the Fourth Proportional to 706,718.70, 1,057,486.05 and 520,094.70

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Solution

The fourth proportional to 706,718.70, 1,057,486.05 and 520,094.70 is: 778,234.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,718.70 : 1,057,486.05 = 520,094.70 : x
  2. Step 2: Convert to fraction form
    706,718.70/1,057,486.05 = 520,094.70/x
  3. Step 3: Cross multiply
    706,718.70x = 1,057,486.05 × 520,094.70
  4. Step 4: Simplify right side
    706,718.70x = 549,992,889,928.94
  5. Step 5: Solve for x
    x = 549,992,889,928.94/706,718.70
  6. Step 6: Final answer
    x = 778,234.52

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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.