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Finding the Fourth Proportional to 556,275.67, 767,675.53 and 314,594.39

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Solution

The fourth proportional to 556,275.67, 767,675.53 and 314,594.39 is: 434,148.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,275.67 : 767,675.53 = 314,594.39 : x
  2. Step 2: Convert to fraction form
    556,275.67/767,675.53 = 314,594.39/x
  3. Step 3: Cross multiply
    556,275.67x = 767,675.53 × 314,594.39
  4. Step 4: Simplify right side
    556,275.67x = 241,506,415,078.28
  5. Step 5: Solve for x
    x = 241,506,415,078.28/556,275.67
  6. Step 6: Final answer
    x = 434,148.80

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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.