Home / 1,013,507.69-1,398,545.37-686,154.79

Finding the Fourth Proportional to 1,013,507.69, 1,398,545.37 and 686,154.79

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Solution

The fourth proportional to 1,013,507.69, 1,398,545.37 and 686,154.79 is: 946,829.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,013,507.69 : 1,398,545.37 = 686,154.79 : x
  2. Step 2: Convert to fraction form
    1,013,507.69/1,398,545.37 = 686,154.79/x
  3. Step 3: Cross multiply
    1,013,507.69x = 1,398,545.37 × 686,154.79
  4. Step 4: Simplify right side
    1,013,507.69x = 959,618,604,657.82
  5. Step 5: Solve for x
    x = 959,618,604,657.82/1,013,507.69
  6. Step 6: Final answer
    x = 946,829.13

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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.