Home / 904,633.76-1,248,414.48-512,133.92

Finding the Fourth Proportional to 904,633.76, 1,248,414.48 and 512,133.92

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Solution

The fourth proportional to 904,633.76, 1,248,414.48 and 512,133.92 is: 706,756.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,633.76 : 1,248,414.48 = 512,133.92 : x
  2. Step 2: Convert to fraction form
    904,633.76/1,248,414.48 = 512,133.92/x
  3. Step 3: Cross multiply
    904,633.76x = 1,248,414.48 × 512,133.92
  4. Step 4: Simplify right side
    904,633.76x = 639,355,401,427.16
  5. Step 5: Solve for x
    x = 639,355,401,427.16/904,633.76
  6. Step 6: Final answer
    x = 706,756.07

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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.