Home / 985,567.31-1,478,510.91-386,203.56

Finding the Fourth Proportional to 985,567.31, 1,478,510.91 and 386,203.56

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Solution

The fourth proportional to 985,567.31, 1,478,510.91 and 386,203.56 is: 579,368.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,567.31 : 1,478,510.91 = 386,203.56 : x
  2. Step 2: Convert to fraction form
    985,567.31/1,478,510.91 = 386,203.56/x
  3. Step 3: Cross multiply
    985,567.31x = 1,478,510.91 × 386,203.56
  4. Step 4: Simplify right side
    985,567.31x = 571,006,176,940.84
  5. Step 5: Solve for x
    x = 571,006,176,940.84/985,567.31
  6. Step 6: Final answer
    x = 579,368.01

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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.