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Finding the Fourth Proportional to 705,984.61, 974,265.15 and 383,695.47

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Solution

The fourth proportional to 705,984.61, 974,265.15 and 383,695.47 is: 529,503.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,984.61 : 974,265.15 = 383,695.47 : x
  2. Step 2: Convert to fraction form
    705,984.61/974,265.15 = 383,695.47/x
  3. Step 3: Cross multiply
    705,984.61x = 974,265.15 × 383,695.47
  4. Step 4: Simplify right side
    705,984.61x = 373,821,124,633.87
  5. Step 5: Solve for x
    x = 373,821,124,633.87/705,984.61
  6. Step 6: Final answer
    x = 529,503.22

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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.