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Finding the Fourth Proportional to 1,947,877.92, 2,688,019.97 and 1,088,445.24

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Solution

The fourth proportional to 1,947,877.92, 2,688,019.97 and 1,088,445.24 is: 1,502,025.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,947,877.92 : 2,688,019.97 = 1,088,445.24 : x
  2. Step 2: Convert to fraction form
    1,947,877.92/2,688,019.97 = 1,088,445.24/x
  3. Step 3: Cross multiply
    1,947,877.92x = 2,688,019.97 × 1,088,445.24
  4. Step 4: Simplify right side
    1,947,877.92x = 2,925,762,535,929.22
  5. Step 5: Solve for x
    x = 2,925,762,535,929.22/1,947,877.92
  6. Step 6: Final answer
    x = 1,502,025.62

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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.