Home / 661,527.17-991,038.69-390,845.83

Finding the Fourth Proportional to 661,527.17, 991,038.69 and 390,845.83

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Solution

The fourth proportional to 661,527.17, 991,038.69 and 390,845.83 is: 585,528.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,527.17 : 991,038.69 = 390,845.83 : x
  2. Step 2: Convert to fraction form
    661,527.17/991,038.69 = 390,845.83/x
  3. Step 3: Cross multiply
    661,527.17x = 991,038.69 × 390,845.83
  4. Step 4: Simplify right side
    661,527.17x = 387,343,334,399.97
  5. Step 5: Solve for x
    x = 387,343,334,399.97/661,527.17
  6. Step 6: Final answer
    x = 585,528.99

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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.