Home / 528,320.67-792,478.26-128,963.53

Finding the Fourth Proportional to 528,320.67, 792,478.26 and 128,963.53

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Solution

The fourth proportional to 528,320.67, 792,478.26 and 128,963.53 is: 193,444.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,320.67 : 792,478.26 = 128,963.53 : x
  2. Step 2: Convert to fraction form
    528,320.67/792,478.26 = 128,963.53/x
  3. Step 3: Cross multiply
    528,320.67x = 792,478.26 × 128,963.53
  4. Step 4: Simplify right side
    528,320.67x = 102,200,793,857.86
  5. Step 5: Solve for x
    x = 102,200,793,857.86/528,320.67
  6. Step 6: Final answer
    x = 193,444.62

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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.