Home / 897,563.20-1,238,752.36-515,663.80

Finding the Fourth Proportional to 897,563.20, 1,238,752.36 and 515,663.80

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Solution

The fourth proportional to 897,563.20, 1,238,752.36 and 515,663.80 is: 711,682.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,563.20 : 1,238,752.36 = 515,663.80 : x
  2. Step 2: Convert to fraction form
    897,563.20/1,238,752.36 = 515,663.80/x
  3. Step 3: Cross multiply
    897,563.20x = 1,238,752.36 × 515,663.80
  4. Step 4: Simplify right side
    897,563.20x = 638,779,749,216.57
  5. Step 5: Solve for x
    x = 638,779,749,216.57/897,563.20
  6. Step 6: Final answer
    x = 711,682.20

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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.