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Finding the Fourth Proportional to 705,929.48, 973,228.74 and 479,181.32

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Solution

The fourth proportional to 705,929.48, 973,228.74 and 479,181.32 is: 660,622.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,929.48 : 973,228.74 = 479,181.32 : x
  2. Step 2: Convert to fraction form
    705,929.48/973,228.74 = 479,181.32/x
  3. Step 3: Cross multiply
    705,929.48x = 973,228.74 × 479,181.32
  4. Step 4: Simplify right side
    705,929.48x = 466,353,032,295.14
  5. Step 5: Solve for x
    x = 466,353,032,295.14/705,929.48
  6. Step 6: Final answer
    x = 660,622.69

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Double scale
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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.