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Finding the Fourth Proportional to 520,386.96, 776,183.52 and 504,636.24

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Solution

The fourth proportional to 520,386.96, 776,183.52 and 504,636.24 is: 752,690.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,386.96 : 776,183.52 = 504,636.24 : x
  2. Step 2: Convert to fraction form
    520,386.96/776,183.52 = 504,636.24/x
  3. Step 3: Cross multiply
    520,386.96x = 776,183.52 × 504,636.24
  4. Step 4: Simplify right side
    520,386.96x = 391,690,333,082.77
  5. Step 5: Solve for x
    x = 391,690,333,082.77/520,386.96
  6. Step 6: Final answer
    x = 752,690.52

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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 (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.