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Finding the Fourth Proportional to 999,887.34, 1,379,809.68 and 570,306

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Solution

The fourth proportional to 999,887.34, 1,379,809.68 and 570,306 is: 787,002.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,887.34 : 1,379,809.68 = 570,306 : x
  2. Step 2: Convert to fraction form
    999,887.34/1,379,809.68 = 570,306/x
  3. Step 3: Cross multiply
    999,887.34x = 1,379,809.68 × 570,306
  4. Step 4: Simplify right side
    999,887.34x = 786,913,739,362.08
  5. Step 5: Solve for x
    x = 786,913,739,362.08/999,887.34
  6. Step 6: Final answer
    x = 787,002.40

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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.