Home / 626,947.20-940,420.80-153,637.20

Finding the Fourth Proportional to 626,947.20, 940,420.80 and 153,637.20

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Solution

The fourth proportional to 626,947.20, 940,420.80 and 153,637.20 is: 230,455.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,947.20 : 940,420.80 = 153,637.20 : x
  2. Step 2: Convert to fraction form
    626,947.20/940,420.80 = 153,637.20/x
  3. Step 3: Cross multiply
    626,947.20x = 940,420.80 × 153,637.20
  4. Step 4: Simplify right side
    626,947.20x = 144,483,618,533.76
  5. Step 5: Solve for x
    x = 144,483,618,533.76/626,947.20
  6. Step 6: Final answer
    x = 230,455.80

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.