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Finding the Fourth Proportional to 528,037.90, 792,056.85 and 403,621.90

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Solution

The fourth proportional to 528,037.90, 792,056.85 and 403,621.90 is: 605,432.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,037.90 : 792,056.85 = 403,621.90 : x
  2. Step 2: Convert to fraction form
    528,037.90/792,056.85 = 403,621.90/x
  3. Step 3: Cross multiply
    528,037.90x = 792,056.85 × 403,621.90
  4. Step 4: Simplify right side
    528,037.90x = 319,691,490,705.02
  5. Step 5: Solve for x
    x = 319,691,490,705.02/528,037.90
  6. Step 6: Final answer
    x = 605,432.85

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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.