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Finding the Fourth Proportional to 583,358.40, 874,519.20 and 383,774.40

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Solution

The fourth proportional to 583,358.40, 874,519.20 and 383,774.40 is: 575,320.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,358.40 : 874,519.20 = 383,774.40 : x
  2. Step 2: Convert to fraction form
    583,358.40/874,519.20 = 383,774.40/x
  3. Step 3: Cross multiply
    583,358.40x = 874,519.20 × 383,774.40
  4. Step 4: Simplify right side
    583,358.40x = 335,618,081,268.48
  5. Step 5: Solve for x
    x = 335,618,081,268.48/583,358.40
  6. Step 6: Final answer
    x = 575,320.56

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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.