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Finding the Fourth Proportional to 705,982.61, 974,262.39 and 383,693.47

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Solution

The fourth proportional to 705,982.61, 974,262.39 and 383,693.47 is: 529,500.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,982.61 : 974,262.39 = 383,693.47 : x
  2. Step 2: Convert to fraction form
    705,982.61/974,262.39 = 383,693.47/x
  3. Step 3: Cross multiply
    705,982.61x = 974,262.39 × 383,693.47
  4. Step 4: Simplify right side
    705,982.61x = 373,818,117,109.59
  5. Step 5: Solve for x
    x = 373,818,117,109.59/705,982.61
  6. Step 6: Final answer
    x = 529,500.46

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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.