Home / 1,528,887.03-2,109,865.40-840,570.55

Finding the Fourth Proportional to 1,528,887.03, 2,109,865.40 and 840,570.55

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Solution

The fourth proportional to 1,528,887.03, 2,109,865.40 and 840,570.55 is: 1,159,988.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528,887.03 : 2,109,865.40 = 840,570.55 : x
  2. Step 2: Convert to fraction form
    1,528,887.03/2,109,865.40 = 840,570.55/x
  3. Step 3: Cross multiply
    1,528,887.03x = 2,109,865.40 × 840,570.55
  4. Step 4: Simplify right side
    1,528,887.03x = 1,773,490,719,703.97
  5. Step 5: Solve for x
    x = 1,773,490,719,703.97/1,528,887.03
  6. Step 6: Final answer
    x = 1,159,988.07

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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.