Home / 1,223,296.13-1,688,148.66-686,752.13

Finding the Fourth Proportional to 1,223,296.13, 1,688,148.66 and 686,752.13

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Solution

The fourth proportional to 1,223,296.13, 1,688,148.66 and 686,752.13 is: 947,717.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,296.13 : 1,688,148.66 = 686,752.13 : x
  2. Step 2: Convert to fraction form
    1,223,296.13/1,688,148.66 = 686,752.13/x
  3. Step 3: Cross multiply
    1,223,296.13x = 1,688,148.66 × 686,752.13
  4. Step 4: Simplify right side
    1,223,296.13x = 1,159,339,679,570.90
  5. Step 5: Solve for x
    x = 1,159,339,679,570.90/1,223,296.13
  6. Step 6: Final answer
    x = 947,717.94

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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.