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Finding the Fourth Proportional to 556,455.48, 767,925.95 and 314,733.33

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Solution

The fourth proportional to 556,455.48, 767,925.95 and 314,733.33 is: 434,341.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,455.48 : 767,925.95 = 314,733.33 : x
  2. Step 2: Convert to fraction form
    556,455.48/767,925.95 = 314,733.33/x
  3. Step 3: Cross multiply
    556,455.48x = 767,925.95 × 314,733.33
  4. Step 4: Simplify right side
    556,455.48x = 241,691,889,863.25
  5. Step 5: Solve for x
    x = 241,691,889,863.25/556,455.48
  6. Step 6: Final answer
    x = 434,341.83

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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.