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Finding the Fourth Proportional to 551,903.40, 761,059.62 and 461,225.52

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Solution

The fourth proportional to 551,903.40, 761,059.62 and 461,225.52 is: 636,017.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,903.40 : 761,059.62 = 461,225.52 : x
  2. Step 2: Convert to fraction form
    551,903.40/761,059.62 = 461,225.52/x
  3. Step 3: Cross multiply
    551,903.40x = 761,059.62 × 461,225.52
  4. Step 4: Simplify right side
    551,903.40x = 351,020,118,985.50
  5. Step 5: Solve for x
    x = 351,020,118,985.50/551,903.40
  6. Step 6: Final answer
    x = 636,017.32

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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.