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Finding the Fourth Proportional to 1,711,828.52, 2,362,294.42 and 947,865.64

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Solution

The fourth proportional to 1,711,828.52, 2,362,294.42 and 947,865.64 is: 1,308,038.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,711,828.52 : 2,362,294.42 = 947,865.64 : x
  2. Step 2: Convert to fraction form
    1,711,828.52/2,362,294.42 = 947,865.64/x
  3. Step 3: Cross multiply
    1,711,828.52x = 2,362,294.42 × 947,865.64
  4. Step 4: Simplify right side
    1,711,828.52x = 2,239,137,712,281.73
  5. Step 5: Solve for x
    x = 2,239,137,712,281.73/1,711,828.52
  6. Step 6: Final answer
    x = 1,308,038.56

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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.