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Finding the Fourth Proportional to 651,217.34, 898,185.71 and 570,504.76

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Solution

The fourth proportional to 651,217.34, 898,185.71 and 570,504.76 is: 786,863.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,217.34 : 898,185.71 = 570,504.76 : x
  2. Step 2: Convert to fraction form
    651,217.34/898,185.71 = 570,504.76/x
  3. Step 3: Cross multiply
    651,217.34x = 898,185.71 × 570,504.76
  4. Step 4: Simplify right side
    651,217.34x = 512,419,222,099.78
  5. Step 5: Solve for x
    x = 512,419,222,099.78/651,217.34
  6. Step 6: Final answer
    x = 786,863.60

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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.