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Finding the Fourth Proportional to 482,672.90, 724,009.35 and 370,917.20

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Solution

The fourth proportional to 482,672.90, 724,009.35 and 370,917.20 is: 556,375.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,672.90 : 724,009.35 = 370,917.20 : x
  2. Step 2: Convert to fraction form
    482,672.90/724,009.35 = 370,917.20/x
  3. Step 3: Cross multiply
    482,672.90x = 724,009.35 × 370,917.20
  4. Step 4: Simplify right side
    482,672.90x = 268,547,520,875.82
  5. Step 5: Solve for x
    x = 268,547,520,875.82/482,672.90
  6. Step 6: Final answer
    x = 556,375.80

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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.