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Finding the Fourth Proportional to 583,405.60, 873,358.80 and 346,626.40

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Solution

The fourth proportional to 583,405.60, 873,358.80 and 346,626.40 is: 518,900.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,405.60 : 873,358.80 = 346,626.40 : x
  2. Step 2: Convert to fraction form
    583,405.60/873,358.80 = 346,626.40/x
  3. Step 3: Cross multiply
    583,405.60x = 873,358.80 × 346,626.40
  4. Step 4: Simplify right side
    583,405.60x = 302,729,216,752.32
  5. Step 5: Solve for x
    x = 302,729,216,752.32/583,405.60
  6. Step 6: Final answer
    x = 518,900.09

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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.