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Finding the Fourth Proportional to 528,038.40, 792,057.60 and 191,078.40

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Solution

The fourth proportional to 528,038.40, 792,057.60 and 191,078.40 is: 286,617.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,038.40 : 792,057.60 = 191,078.40 : x
  2. Step 2: Convert to fraction form
    528,038.40/792,057.60 = 191,078.40/x
  3. Step 3: Cross multiply
    528,038.40x = 792,057.60 × 191,078.40
  4. Step 4: Simplify right side
    528,038.40x = 151,345,098,915.84
  5. Step 5: Solve for x
    x = 151,345,098,915.84/528,038.40
  6. Step 6: Final answer
    x = 286,617.60

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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.