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Finding the Fourth Proportional to 705,189.60, 973,162.80 and 382,900.32

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Solution

The fourth proportional to 705,189.60, 973,162.80 and 382,900.32 is: 528,403.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,189.60 : 973,162.80 = 382,900.32 : x
  2. Step 2: Convert to fraction form
    705,189.60/973,162.80 = 382,900.32/x
  3. Step 3: Cross multiply
    705,189.60x = 973,162.80 × 382,900.32
  4. Step 4: Simplify right side
    705,189.60x = 372,624,347,532.10
  5. Step 5: Solve for x
    x = 372,624,347,532.10/705,189.60
  6. Step 6: Final answer
    x = 528,403.07

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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.