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Finding the Fourth Proportional to 526,381.60, 787,268.40 and 470,624.80

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Solution

The fourth proportional to 526,381.60, 787,268.40 and 470,624.80 is: 703,877.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,381.60 : 787,268.40 = 470,624.80 : x
  2. Step 2: Convert to fraction form
    526,381.60/787,268.40 = 470,624.80/x
  3. Step 3: Cross multiply
    526,381.60x = 787,268.40 × 470,624.80
  4. Step 4: Simplify right side
    526,381.60x = 370,508,033,296.32
  5. Step 5: Solve for x
    x = 370,508,033,296.32/526,381.60
  6. Step 6: Final answer
    x = 703,877.25

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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.