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Finding the Fourth Proportional to 705,663.89, 973,810.97 and 383,376.63

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Solution

The fourth proportional to 705,663.89, 973,810.97 and 383,376.63 is: 529,056.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,663.89 : 973,810.97 = 383,376.63 : x
  2. Step 2: Convert to fraction form
    705,663.89/973,810.97 = 383,376.63/x
  3. Step 3: Cross multiply
    705,663.89x = 973,810.97 × 383,376.63
  4. Step 4: Simplify right side
    705,663.89x = 373,336,367,935.63
  5. Step 5: Solve for x
    x = 373,336,367,935.63/705,663.89
  6. Step 6: Final answer
    x = 529,056.93

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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.