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Finding the Fourth Proportional to 292,523.70, 438,785.55 and 70,907.70

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Solution

The fourth proportional to 292,523.70, 438,785.55 and 70,907.70 is: 106,361.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,523.70 : 438,785.55 = 70,907.70 : x
  2. Step 2: Convert to fraction form
    292,523.70/438,785.55 = 70,907.70/x
  3. Step 3: Cross multiply
    292,523.70x = 438,785.55 × 70,907.70
  4. Step 4: Simplify right side
    292,523.70x = 31,113,274,143.74
  5. Step 5: Solve for x
    x = 31,113,274,143.74/292,523.70
  6. Step 6: Final answer
    x = 106,361.55

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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.