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Finding the Fourth Proportional to 875.16, 1,207.12 and 595.24

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Solution

The fourth proportional to 875.16, 1,207.12 and 595.24 is: 821.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    875.16 : 1,207.12 = 595.24 : x
  2. Step 2: Convert to fraction form
    875.16/1,207.12 = 595.24/x
  3. Step 3: Cross multiply
    875.16x = 1,207.12 × 595.24
  4. Step 4: Simplify right side
    875.16x = 718,526.11
  5. Step 5: Solve for x
    x = 718,526.11/875.16
  6. Step 6: Final answer
    x = 821.02

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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.