Home / 708,419.51-977,619.54-386,123.14

Finding the Fourth Proportional to 708,419.51, 977,619.54 and 386,123.14

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Solution

The fourth proportional to 708,419.51, 977,619.54 and 386,123.14 is: 532,850.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,419.51 : 977,619.54 = 386,123.14 : x
  2. Step 2: Convert to fraction form
    708,419.51/977,619.54 = 386,123.14/x
  3. Step 3: Cross multiply
    708,419.51x = 977,619.54 × 386,123.14
  4. Step 4: Simplify right side
    708,419.51x = 377,481,526,510.16
  5. Step 5: Solve for x
    x = 377,481,526,510.16/708,419.51
  6. Step 6: Final answer
    x = 532,850.27

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1.5x scale

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.