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Finding the Fourth Proportional to 545,091.63, 818,967.86 and 514,878.22

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Solution

The fourth proportional to 545,091.63, 818,967.86 and 514,878.22 is: 773,574.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,091.63 : 818,967.86 = 514,878.22 : x
  2. Step 2: Convert to fraction form
    545,091.63/818,967.86 = 514,878.22/x
  3. Step 3: Cross multiply
    545,091.63x = 818,967.86 × 514,878.22
  4. Step 4: Simplify right side
    545,091.63x = 421,668,717,270.31
  5. Step 5: Solve for x
    x = 421,668,717,270.31/545,091.63
  6. Step 6: Final answer
    x = 773,574.01

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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.