Home / 472,212.90-651,634.77-257,348.34

Finding the Fourth Proportional to 472,212.90, 651,634.77 and 257,348.34

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Solution

The fourth proportional to 472,212.90, 651,634.77 and 257,348.34 is: 355,130.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,212.90 : 651,634.77 = 257,348.34 : x
  2. Step 2: Convert to fraction form
    472,212.90/651,634.77 = 257,348.34/x
  3. Step 3: Cross multiply
    472,212.90x = 651,634.77 × 257,348.34
  4. Step 4: Simplify right side
    472,212.90x = 167,697,126,345.78
  5. Step 5: Solve for x
    x = 167,697,126,345.78/472,212.90
  6. Step 6: Final answer
    x = 355,130.34

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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.