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Finding the Fourth Proportional to 964,869, 1,330,647.90 and 602,326.40

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Solution

The fourth proportional to 964,869, 1,330,647.90 and 602,326.40 is: 830,666.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    964,869 : 1,330,647.90 = 602,326.40 : x
  2. Step 2: Convert to fraction form
    964,869/1,330,647.90 = 602,326.40/x
  3. Step 3: Cross multiply
    964,869x = 1,330,647.90 × 602,326.40
  4. Step 4: Simplify right side
    964,869x = 801,484,359,274.56
  5. Step 5: Solve for x
    x = 801,484,359,274.56/964,869
  6. Step 6: Final answer
    x = 830,666.50

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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.