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Finding the Fourth Proportional to 528,714.66, 729,606.48 and 286,992.06

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Solution

The fourth proportional to 528,714.66, 729,606.48 and 286,992.06 is: 396,038.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,714.66 : 729,606.48 = 286,992.06 : x
  2. Step 2: Convert to fraction form
    528,714.66/729,606.48 = 286,992.06/x
  3. Step 3: Cross multiply
    528,714.66x = 729,606.48 × 286,992.06
  4. Step 4: Simplify right side
    528,714.66x = 209,391,266,684.55
  5. Step 5: Solve for x
    x = 209,391,266,684.55/528,714.66
  6. Step 6: Final answer
    x = 396,038.32

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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.