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Finding the Fourth Proportional to 705,670.64, 973,820.27 and 383,383.38

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Solution

The fourth proportional to 705,670.64, 973,820.27 and 383,383.38 is: 529,066.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,670.64 : 973,820.27 = 383,383.38 : x
  2. Step 2: Convert to fraction form
    705,670.64/973,820.27 = 383,383.38/x
  3. Step 3: Cross multiply
    705,670.64x = 973,820.27 × 383,383.38
  4. Step 4: Simplify right side
    705,670.64x = 373,346,506,625.11
  5. Step 5: Solve for x
    x = 373,346,506,625.11/705,670.64
  6. Step 6: Final answer
    x = 529,066.23

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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.