Home / 1,528,812.57-2,109,784.95-840,514.26

Finding the Fourth Proportional to 1,528,812.57, 2,109,784.95 and 840,514.26

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Solution

The fourth proportional to 1,528,812.57, 2,109,784.95 and 840,514.26 is: 1,159,922.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528,812.57 : 2,109,784.95 = 840,514.26 : x
  2. Step 2: Convert to fraction form
    1,528,812.57/2,109,784.95 = 840,514.26/x
  3. Step 3: Cross multiply
    1,528,812.57x = 2,109,784.95 × 840,514.26
  4. Step 4: Simplify right side
    1,528,812.57x = 1,773,304,336,008.39
  5. Step 5: Solve for x
    x = 1,773,304,336,008.39/1,528,812.57
  6. Step 6: Final answer
    x = 1,159,922.66

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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.