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Finding the Fourth Proportional to 858,335.76, 1,184,479.47 and 471,150.90

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Solution

The fourth proportional to 858,335.76, 1,184,479.47 and 471,150.90 is: 650,175.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,335.76 : 1,184,479.47 = 471,150.90 : x
  2. Step 2: Convert to fraction form
    858,335.76/1,184,479.47 = 471,150.90/x
  3. Step 3: Cross multiply
    858,335.76x = 1,184,479.47 × 471,150.90
  4. Step 4: Simplify right side
    858,335.76x = 558,068,568,322.02
  5. Step 5: Solve for x
    x = 558,068,568,322.02/858,335.76
  6. Step 6: Final answer
    x = 650,175.13

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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.