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Finding the Fourth Proportional to 705,897.05, 974,137.09 and 383,606.42

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Solution

The fourth proportional to 705,897.05, 974,137.09 and 383,606.42 is: 529,376.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,897.05 : 974,137.09 = 383,606.42 : x
  2. Step 2: Convert to fraction form
    705,897.05/974,137.09 = 383,606.42/x
  3. Step 3: Cross multiply
    705,897.05x = 974,137.09 × 383,606.42
  4. Step 4: Simplify right side
    705,897.05x = 373,685,241,684.12
  5. Step 5: Solve for x
    x = 373,685,241,684.12/705,897.05
  6. Step 6: Final answer
    x = 529,376.40

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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.