Home / 658,864.53-909,243.14-386,938.17

Finding the Fourth Proportional to 658,864.53, 909,243.14 and 386,938.17

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Solution

The fourth proportional to 658,864.53, 909,243.14 and 386,938.17 is: 533,980.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,864.53 : 909,243.14 = 386,938.17 : x
  2. Step 2: Convert to fraction form
    658,864.53/909,243.14 = 386,938.17/x
  3. Step 3: Cross multiply
    658,864.53x = 909,243.14 × 386,938.17
  4. Step 4: Simplify right side
    658,864.53x = 351,820,874,741.96
  5. Step 5: Solve for x
    x = 351,820,874,741.96/658,864.53
  6. Step 6: Final answer
    x = 533,980.60

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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.