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Finding the Fourth Proportional to 705,985.80, 974,267.88 and 383,695.92

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Solution

The fourth proportional to 705,985.80, 974,267.88 and 383,695.92 is: 529,504.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,985.80 : 974,267.88 = 383,695.92 : x
  2. Step 2: Convert to fraction form
    705,985.80/974,267.88 = 383,695.92/x
  3. Step 3: Cross multiply
    705,985.80x = 974,267.88 × 383,695.92
  4. Step 4: Simplify right side
    705,985.80x = 373,822,610,543.05
  5. Step 5: Solve for x
    x = 373,822,610,543.05/705,985.80
  6. Step 6: Final answer
    x = 529,504.43

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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.