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Finding the Fourth Proportional to 528,028.40, 792,042.60 and 403,612.40

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Solution

The fourth proportional to 528,028.40, 792,042.60 and 403,612.40 is: 605,418.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,028.40 : 792,042.60 = 403,612.40 : x
  2. Step 2: Convert to fraction form
    528,028.40/792,042.60 = 403,612.40/x
  3. Step 3: Cross multiply
    528,028.40x = 792,042.60 × 403,612.40
  4. Step 4: Simplify right side
    528,028.40x = 319,678,214,688.24
  5. Step 5: Solve for x
    x = 319,678,214,688.24/528,028.40
  6. Step 6: Final answer
    x = 605,418.60

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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.