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Finding the Fourth Proportional to 382,185.72, 526,211.64 and 346,756.32

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Solution

The fourth proportional to 382,185.72, 526,211.64 and 346,756.32 is: 477,430.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,185.72 : 526,211.64 = 346,756.32 : x
  2. Step 2: Convert to fraction form
    382,185.72/526,211.64 = 346,756.32/x
  3. Step 3: Cross multiply
    382,185.72x = 526,211.64 × 346,756.32
  4. Step 4: Simplify right side
    382,185.72x = 182,467,211,827.57
  5. Step 5: Solve for x
    x = 182,467,211,827.57/382,185.72
  6. Step 6: Final answer
    x = 477,430.74

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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.