Home / 916,838.19-1,376,162.37-688,339.07

Finding the Fourth Proportional to 916,838.19, 1,376,162.37 and 688,339.07

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Solution

The fourth proportional to 916,838.19, 1,376,162.37 and 688,339.07 is: 1,033,188.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,838.19 : 1,376,162.37 = 688,339.07 : x
  2. Step 2: Convert to fraction form
    916,838.19/1,376,162.37 = 688,339.07/x
  3. Step 3: Cross multiply
    916,838.19x = 1,376,162.37 × 688,339.07
  4. Step 4: Simplify right side
    916,838.19x = 947,266,319,053.98
  5. Step 5: Solve for x
    x = 947,266,319,053.98/916,838.19
  6. Step 6: Final answer
    x = 1,033,188.11

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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.