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Finding the Fourth Proportional to 664,494.30, 996,741.45 and 571,182.30

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Solution

The fourth proportional to 664,494.30, 996,741.45 and 571,182.30 is: 856,773.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,494.30 : 996,741.45 = 571,182.30 : x
  2. Step 2: Convert to fraction form
    664,494.30/996,741.45 = 571,182.30/x
  3. Step 3: Cross multiply
    664,494.30x = 996,741.45 × 571,182.30
  4. Step 4: Simplify right side
    664,494.30x = 569,321,073,916.34
  5. Step 5: Solve for x
    x = 569,321,073,916.34/664,494.30
  6. Step 6: Final answer
    x = 856,773.45

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Half scale
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Double scale
Find fourth proportional to 664,495.30, 996,742.95 and 571,183.30
Similar ratio
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1.5x scale

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.