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Finding the Fourth Proportional to 705,502.31, 973,611.29 and 383,230.85

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Solution

The fourth proportional to 705,502.31, 973,611.29 and 383,230.85 is: 528,868.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,502.31 : 973,611.29 = 383,230.85 : x
  2. Step 2: Convert to fraction form
    705,502.31/973,611.29 = 383,230.85/x
  3. Step 3: Cross multiply
    705,502.31x = 973,611.29 × 383,230.85
  4. Step 4: Simplify right side
    705,502.31x = 373,117,878,326.32
  5. Step 5: Solve for x
    x = 373,117,878,326.32/705,502.31
  6. Step 6: Final answer
    x = 528,868.40

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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.