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Finding the Fourth Proportional to 592,645.35, 817,856.35 and 320,718.89

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Solution

The fourth proportional to 592,645.35, 817,856.35 and 320,718.89 is: 442,595.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,645.35 : 817,856.35 = 320,718.89 : x
  2. Step 2: Convert to fraction form
    592,645.35/817,856.35 = 320,718.89/x
  3. Step 3: Cross multiply
    592,645.35x = 817,856.35 × 320,718.89
  4. Step 4: Simplify right side
    592,645.35x = 262,301,984,274.76
  5. Step 5: Solve for x
    x = 262,301,984,274.76/592,645.35
  6. Step 6: Final answer
    x = 442,595.20

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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.