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Finding the Fourth Proportional to 706,033, 974,325.54 and 388,081

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Solution

The fourth proportional to 706,033, 974,325.54 and 388,081 is: 535,551.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,033 : 974,325.54 = 388,081 : x
  2. Step 2: Convert to fraction form
    706,033/974,325.54 = 388,081/x
  3. Step 3: Cross multiply
    706,033x = 974,325.54 × 388,081
  4. Step 4: Simplify right side
    706,033x = 378,117,229,888.74
  5. Step 5: Solve for x
    x = 378,117,229,888.74/706,033
  6. Step 6: Final answer
    x = 535,551.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.