Home / 861,182.64-1,188,325.08-479,182.32

Finding the Fourth Proportional to 861,182.64, 1,188,325.08 and 479,182.32

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Solution

The fourth proportional to 861,182.64, 1,188,325.08 and 479,182.32 is: 661,212.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,182.64 : 1,188,325.08 = 479,182.32 : x
  2. Step 2: Convert to fraction form
    861,182.64/1,188,325.08 = 479,182.32/x
  3. Step 3: Cross multiply
    861,182.64x = 1,188,325.08 × 479,182.32
  4. Step 4: Simplify right side
    861,182.64x = 569,424,368,748.59
  5. Step 5: Solve for x
    x = 569,424,368,748.59/861,182.64
  6. Step 6: Final answer
    x = 661,212.08

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Half scale
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Double scale
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Similar ratio
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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.