Home / 1,223,295.75-1,688,148.18-686,751.75

Finding the Fourth Proportional to 1,223,295.75, 1,688,148.18 and 686,751.75

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Solution

The fourth proportional to 1,223,295.75, 1,688,148.18 and 686,751.75 is: 947,717.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,295.75 : 1,688,148.18 = 686,751.75 : x
  2. Step 2: Convert to fraction form
    1,223,295.75/1,688,148.18 = 686,751.75/x
  3. Step 3: Cross multiply
    1,223,295.75x = 1,688,148.18 × 686,751.75
  4. Step 4: Simplify right side
    1,223,295.75x = 1,159,338,716,874.32
  5. Step 5: Solve for x
    x = 1,159,338,716,874.32/1,223,295.75
  6. Step 6: Final answer
    x = 947,717.44

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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.