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Finding the Fourth Proportional to 554,427.30, 830,474.55 and 461,115.30

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Solution

The fourth proportional to 554,427.30, 830,474.55 and 461,115.30 is: 690,702.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,427.30 : 830,474.55 = 461,115.30 : x
  2. Step 2: Convert to fraction form
    554,427.30/830,474.55 = 461,115.30/x
  3. Step 3: Cross multiply
    554,427.30x = 830,474.55 × 461,115.30
  4. Step 4: Simplify right side
    554,427.30x = 382,944,521,265.62
  5. Step 5: Solve for x
    x = 382,944,521,265.62/554,427.30
  6. Step 6: Final answer
    x = 690,702.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.