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Finding the Fourth Proportional to 936,120.15, 1,404,967.95 and 877,071.15

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Solution

The fourth proportional to 936,120.15, 1,404,967.95 and 877,071.15 is: 1,316,344.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,120.15 : 1,404,967.95 = 877,071.15 : x
  2. Step 2: Convert to fraction form
    936,120.15/1,404,967.95 = 877,071.15/x
  3. Step 3: Cross multiply
    936,120.15x = 1,404,967.95 × 877,071.15
  4. Step 4: Simplify right side
    936,120.15x = 1,232,256,855,619.64
  5. Step 5: Solve for x
    x = 1,232,256,855,619.64/936,120.15
  6. Step 6: Final answer
    x = 1,316,344.76

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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.