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Finding the Fourth Proportional to 1,569,100.65, 2,353,650.98 and 771,939.15

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Solution

The fourth proportional to 1,569,100.65, 2,353,650.98 and 771,939.15 is: 1,157,908.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,569,100.65 : 2,353,650.98 = 771,939.15 : x
  2. Step 2: Convert to fraction form
    1,569,100.65/2,353,650.98 = 771,939.15/x
  3. Step 3: Cross multiply
    1,569,100.65x = 2,353,650.98 × 771,939.15
  4. Step 4: Simplify right side
    1,569,100.65x = 1,816,875,333,038.17
  5. Step 5: Solve for x
    x = 1,816,875,333,038.17/1,569,100.65
  6. Step 6: Final answer
    x = 1,157,908.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.