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Finding the Fourth Proportional to 472,207.51, 651,627.34 and 257,342.93

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Solution

The fourth proportional to 472,207.51, 651,627.34 and 257,342.93 is: 355,122.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,207.51 : 651,627.34 = 257,342.93 : x
  2. Step 2: Convert to fraction form
    472,207.51/651,627.34 = 257,342.93/x
  3. Step 3: Cross multiply
    472,207.51x = 651,627.34 × 257,342.93
  4. Step 4: Simplify right side
    472,207.51x = 167,691,688,943.71
  5. Step 5: Solve for x
    x = 167,691,688,943.71/472,207.51
  6. Step 6: Final answer
    x = 355,122.88

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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.