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Finding the Fourth Proportional to 560,881.81, 841,499.75 and 426,589.17

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Solution

The fourth proportional to 560,881.81, 841,499.75 and 426,589.17 is: 640,018.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,881.81 : 841,499.75 = 426,589.17 : x
  2. Step 2: Convert to fraction form
    560,881.81/841,499.75 = 426,589.17/x
  3. Step 3: Cross multiply
    560,881.81x = 841,499.75 × 426,589.17
  4. Step 4: Simplify right side
    560,881.81x = 358,974,677,818.56
  5. Step 5: Solve for x
    x = 358,974,677,818.56/560,881.81
  6. Step 6: Final answer
    x = 640,018.40

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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.