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Finding the Fourth Proportional to 583,626.66, 805,267.64 and 354,178.75

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Solution

The fourth proportional to 583,626.66, 805,267.64 and 354,178.75 is: 488,683.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,626.66 : 805,267.64 = 354,178.75 : x
  2. Step 2: Convert to fraction form
    583,626.66/805,267.64 = 354,178.75/x
  3. Step 3: Cross multiply
    583,626.66x = 805,267.64 × 354,178.75
  4. Step 4: Simplify right side
    583,626.66x = 285,208,686,150.65
  5. Step 5: Solve for x
    x = 285,208,686,150.65/583,626.66
  6. Step 6: Final answer
    x = 488,683.44

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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.