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Finding the Fourth Proportional to 518,913.34, 716,072.61 and 292,544.26

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Solution

The fourth proportional to 518,913.34, 716,072.61 and 292,544.26 is: 403,695.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,913.34 : 716,072.61 = 292,544.26 : x
  2. Step 2: Convert to fraction form
    518,913.34/716,072.61 = 292,544.26/x
  3. Step 3: Cross multiply
    518,913.34x = 716,072.61 × 292,544.26
  4. Step 4: Simplify right side
    518,913.34x = 209,482,931,798.72
  5. Step 5: Solve for x
    x = 209,482,931,798.72/518,913.34
  6. Step 6: Final answer
    x = 403,695.41

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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.