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Finding the Fourth Proportional to 472,055.76, 651,444.39 and 257,195.79

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Solution

The fourth proportional to 472,055.76, 651,444.39 and 257,195.79 is: 354,934.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,055.76 : 651,444.39 = 257,195.79 : x
  2. Step 2: Convert to fraction form
    472,055.76/651,444.39 = 257,195.79/x
  3. Step 3: Cross multiply
    472,055.76x = 651,444.39 × 257,195.79
  4. Step 4: Simplify right side
    472,055.76x = 167,548,754,527.12
  5. Step 5: Solve for x
    x = 167,548,754,527.12/472,055.76
  6. Step 6: Final answer
    x = 354,934.24

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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.