Home / 928,944.06-1,281,957.75-521,136.60

Finding the Fourth Proportional to 928,944.06, 1,281,957.75 and 521,136.60

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Solution

The fourth proportional to 928,944.06, 1,281,957.75 and 521,136.60 is: 719,176.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,944.06 : 1,281,957.75 = 521,136.60 : x
  2. Step 2: Convert to fraction form
    928,944.06/1,281,957.75 = 521,136.60/x
  3. Step 3: Cross multiply
    928,944.06x = 1,281,957.75 × 521,136.60
  4. Step 4: Simplify right side
    928,944.06x = 668,075,103,178.65
  5. Step 5: Solve for x
    x = 668,075,103,178.65/928,944.06
  6. Step 6: Final answer
    x = 719,176.89

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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.