Home / 1,528,980.56-2,109,948.44-840,651.74

Finding the Fourth Proportional to 1,528,980.56, 2,109,948.44 and 840,651.74

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Solution

The fourth proportional to 1,528,980.56, 2,109,948.44 and 840,651.74 is: 1,160,074.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528,980.56 : 2,109,948.44 = 840,651.74 : x
  2. Step 2: Convert to fraction form
    1,528,980.56/2,109,948.44 = 840,651.74/x
  3. Step 3: Cross multiply
    1,528,980.56x = 2,109,948.44 × 840,651.74
  4. Step 4: Simplify right side
    1,528,980.56x = 1,773,731,812,643.28
  5. Step 5: Solve for x
    x = 1,773,731,812,643.28/1,528,980.56
  6. Step 6: Final answer
    x = 1,160,074.80

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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.