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Finding the Fourth Proportional to 557,442.40, 769,589.70 and 367,009.40

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Solution

The fourth proportional to 557,442.40, 769,589.70 and 367,009.40 is: 506,683.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,442.40 : 769,589.70 = 367,009.40 : x
  2. Step 2: Convert to fraction form
    557,442.40/769,589.70 = 367,009.40/x
  3. Step 3: Cross multiply
    557,442.40x = 769,589.70 × 367,009.40
  4. Step 4: Simplify right side
    557,442.40x = 282,446,654,043.18
  5. Step 5: Solve for x
    x = 282,446,654,043.18/557,442.40
  6. Step 6: Final answer
    x = 506,683.12

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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.