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Finding the Fourth Proportional to 472,114.96, 651,518.76 and 257,255.08

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Solution

The fourth proportional to 472,114.96, 651,518.76 and 257,255.08 is: 355,012.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,114.96 : 651,518.76 = 257,255.08 : x
  2. Step 2: Convert to fraction form
    472,114.96/651,518.76 = 257,255.08/x
  3. Step 3: Cross multiply
    472,114.96x = 651,518.76 × 257,255.08
  4. Step 4: Simplify right side
    472,114.96x = 167,606,510,725.30
  5. Step 5: Solve for x
    x = 167,606,510,725.30/472,114.96
  6. Step 6: Final answer
    x = 355,012.07

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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.