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Finding the Fourth Proportional to 518,854.30, 715,927.08 and 292,499.80

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Solution

The fourth proportional to 518,854.30, 715,927.08 and 292,499.80 is: 403,597.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,854.30 : 715,927.08 = 292,499.80 : x
  2. Step 2: Convert to fraction form
    518,854.30/715,927.08 = 292,499.80/x
  3. Step 3: Cross multiply
    518,854.30x = 715,927.08 × 292,499.80
  4. Step 4: Simplify right side
    518,854.30x = 209,408,527,714.58
  5. Step 5: Solve for x
    x = 209,408,527,714.58/518,854.30
  6. Step 6: Final answer
    x = 403,597.94

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1.5x scale

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.