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Finding the Fourth Proportional to 573,466.46, 791,386.79 and 315,360.05

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Solution

The fourth proportional to 573,466.46, 791,386.79 and 315,360.05 is: 435,198.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,466.46 : 791,386.79 = 315,360.05 : x
  2. Step 2: Convert to fraction form
    573,466.46/791,386.79 = 315,360.05/x
  3. Step 3: Cross multiply
    573,466.46x = 791,386.79 × 315,360.05
  4. Step 4: Simplify right side
    573,466.46x = 249,571,772,130.01
  5. Step 5: Solve for x
    x = 249,571,772,130.01/573,466.46
  6. Step 6: Final answer
    x = 435,198.55

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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.