Home / 935,173.50-1,290,539.98-521,710.28

Finding the Fourth Proportional to 935,173.50, 1,290,539.98 and 521,710.28

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Solution

The fourth proportional to 935,173.50, 1,290,539.98 and 521,710.28 is: 719,960.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,173.50 : 1,290,539.98 = 521,710.28 : x
  2. Step 2: Convert to fraction form
    935,173.50/1,290,539.98 = 521,710.28/x
  3. Step 3: Cross multiply
    935,173.50x = 1,290,539.98 × 521,710.28
  4. Step 4: Simplify right side
    935,173.50x = 673,287,973,201.51
  5. Step 5: Solve for x
    x = 673,287,973,201.51/935,173.50
  6. Step 6: Final answer
    x = 719,960.49

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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.