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Finding the Fourth Proportional to 528,361.40, 792,653.88 and 173,345.69

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Solution

The fourth proportional to 528,361.40, 792,653.88 and 173,345.69 is: 260,055.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,361.40 : 792,653.88 = 173,345.69 : x
  2. Step 2: Convert to fraction form
    528,361.40/792,653.88 = 173,345.69/x
  3. Step 3: Cross multiply
    528,361.40x = 792,653.88 × 173,345.69
  4. Step 4: Simplify right side
    528,361.40x = 137,403,133,759.78
  5. Step 5: Solve for x
    x = 137,403,133,759.78/528,361.40
  6. Step 6: Final answer
    x = 260,055.21

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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.