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Finding the Fourth Proportional to 718,346.40, 1,077,368.40 and 363,026.40

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Solution

The fourth proportional to 718,346.40, 1,077,368.40 and 363,026.40 is: 544,463.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,346.40 : 1,077,368.40 = 363,026.40 : x
  2. Step 2: Convert to fraction form
    718,346.40/1,077,368.40 = 363,026.40/x
  3. Step 3: Cross multiply
    718,346.40x = 1,077,368.40 × 363,026.40
  4. Step 4: Simplify right side
    718,346.40x = 391,113,171,725.76
  5. Step 5: Solve for x
    x = 391,113,171,725.76/718,346.40
  6. Step 6: Final answer
    x = 544,463.19

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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.