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Finding the Fourth Proportional to 519,064.10, 778,596.15 and 460,015.10

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Solution

The fourth proportional to 519,064.10, 778,596.15 and 460,015.10 is: 690,022.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,064.10 : 778,596.15 = 460,015.10 : x
  2. Step 2: Convert to fraction form
    519,064.10/778,596.15 = 460,015.10/x
  3. Step 3: Cross multiply
    519,064.10x = 778,596.15 × 460,015.10
  4. Step 4: Simplify right side
    519,064.10x = 358,165,985,801.87
  5. Step 5: Solve for x
    x = 358,165,985,801.87/519,064.10
  6. Step 6: Final answer
    x = 690,022.65

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