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Finding the Fourth Proportional to 562,303.20, 842,521.68 and 395,741.28

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Solution

The fourth proportional to 562,303.20, 842,521.68 and 395,741.28 is: 592,955.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,303.20 : 842,521.68 = 395,741.28 : x
  2. Step 2: Convert to fraction form
    562,303.20/842,521.68 = 395,741.28/x
  3. Step 3: Cross multiply
    562,303.20x = 842,521.68 × 395,741.28
  4. Step 4: Simplify right side
    562,303.20x = 333,420,608,070.95
  5. Step 5: Solve for x
    x = 333,420,608,070.95/562,303.20
  6. Step 6: Final answer
    x = 592,955.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.