Home / 1,528,959.93-2,109,920.04-840,631.05

Finding the Fourth Proportional to 1,528,959.93, 2,109,920.04 and 840,631.05

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Solution

The fourth proportional to 1,528,959.93, 2,109,920.04 and 840,631.05 is: 1,160,046.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528,959.93 : 2,109,920.04 = 840,631.05 : x
  2. Step 2: Convert to fraction form
    1,528,959.93/2,109,920.04 = 840,631.05/x
  3. Step 3: Cross multiply
    1,528,959.93x = 2,109,920.04 × 840,631.05
  4. Step 4: Simplify right side
    1,528,959.93x = 1,773,664,298,641.24
  5. Step 5: Solve for x
    x = 1,773,664,298,641.24/1,528,959.93
  6. Step 6: Final answer
    x = 1,160,046.29

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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.