Home / 838,985.70-1,157,794.30-457,012.46

Finding the Fourth Proportional to 838,985.70, 1,157,794.30 and 457,012.46

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Solution

The fourth proportional to 838,985.70, 1,157,794.30 and 457,012.46 is: 630,673.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,985.70 : 1,157,794.30 = 457,012.46 : x
  2. Step 2: Convert to fraction form
    838,985.70/1,157,794.30 = 457,012.46/x
  3. Step 3: Cross multiply
    838,985.70x = 1,157,794.30 × 457,012.46
  4. Step 4: Simplify right side
    838,985.70x = 529,126,421,216.98
  5. Step 5: Solve for x
    x = 529,126,421,216.98/838,985.70
  6. Step 6: Final answer
    x = 630,673.94

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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.