Home / 1,528,867.61-2,109,838.65-840,551.17

Finding the Fourth Proportional to 1,528,867.61, 2,109,838.65 and 840,551.17

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Solution

The fourth proportional to 1,528,867.61, 2,109,838.65 and 840,551.17 is: 1,159,961.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528,867.61 : 2,109,838.65 = 840,551.17 : x
  2. Step 2: Convert to fraction form
    1,528,867.61/2,109,838.65 = 840,551.17/x
  3. Step 3: Cross multiply
    1,528,867.61x = 2,109,838.65 × 840,551.17
  4. Step 4: Simplify right side
    1,528,867.61x = 1,773,427,351,423.00
  5. Step 5: Solve for x
    x = 1,773,427,351,423.00/1,528,867.61
  6. Step 6: Final answer
    x = 1,159,961.36

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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.