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Finding the Fourth Proportional to 515,271.66, 772,533.82 and 346,373.08

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Solution

The fourth proportional to 515,271.66, 772,533.82 and 346,373.08 is: 519,308.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,271.66 : 772,533.82 = 346,373.08 : x
  2. Step 2: Convert to fraction form
    515,271.66/772,533.82 = 346,373.08/x
  3. Step 3: Cross multiply
    515,271.66x = 772,533.82 × 346,373.08
  4. Step 4: Simplify right side
    515,271.66x = 267,584,918,637.57
  5. Step 5: Solve for x
    x = 267,584,918,637.57/515,271.66
  6. Step 6: Final answer
    x = 519,308.43

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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.