Home / 864,000.85-1,296,001.28-776,909.65

Finding the Fourth Proportional to 864,000.85, 1,296,001.28 and 776,909.65

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Solution

The fourth proportional to 864,000.85, 1,296,001.28 and 776,909.65 is: 1,165,364.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,000.85 : 1,296,001.28 = 776,909.65 : x
  2. Step 2: Convert to fraction form
    864,000.85/1,296,001.28 = 776,909.65/x
  3. Step 3: Cross multiply
    864,000.85x = 1,296,001.28 × 776,909.65
  4. Step 4: Simplify right side
    864,000.85x = 1,006,875,896,959.80
  5. Step 5: Solve for x
    x = 1,006,875,896,959.80/864,000.85
  6. Step 6: Final answer
    x = 1,165,364.48

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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.