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Finding the Fourth Proportional to 666,293.66, 919,482.36 and 360,370.34

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Solution

The fourth proportional to 666,293.66, 919,482.36 and 360,370.34 is: 497,309.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,293.66 : 919,482.36 = 360,370.34 : x
  2. Step 2: Convert to fraction form
    666,293.66/919,482.36 = 360,370.34/x
  3. Step 3: Cross multiply
    666,293.66x = 919,482.36 × 360,370.34
  4. Step 4: Simplify right side
    666,293.66x = 331,354,170,697.20
  5. Step 5: Solve for x
    x = 331,354,170,697.20/666,293.66
  6. Step 6: Final answer
    x = 497,309.51

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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.