Home / 1,209,385.92-1,669,021.50-693,225.72

Finding the Fourth Proportional to 1,209,385.92, 1,669,021.50 and 693,225.72

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Solution

The fourth proportional to 1,209,385.92, 1,669,021.50 and 693,225.72 is: 956,691.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,385.92 : 1,669,021.50 = 693,225.72 : x
  2. Step 2: Convert to fraction form
    1,209,385.92/1,669,021.50 = 693,225.72/x
  3. Step 3: Cross multiply
    1,209,385.92x = 1,669,021.50 × 693,225.72
  4. Step 4: Simplify right side
    1,209,385.92x = 1,157,008,631,032.98
  5. Step 5: Solve for x
    x = 1,157,008,631,032.98/1,209,385.92
  6. Step 6: Final answer
    x = 956,691.00

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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.