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Finding the Fourth Proportional to 369,744.20, 553,838.70 and 307,536.20

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Solution

The fourth proportional to 369,744.20, 553,838.70 and 307,536.20 is: 460,657.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,744.20 : 553,838.70 = 307,536.20 : x
  2. Step 2: Convert to fraction form
    369,744.20/553,838.70 = 307,536.20/x
  3. Step 3: Cross multiply
    369,744.20x = 553,838.70 × 307,536.20
  4. Step 4: Simplify right side
    369,744.20x = 170,325,449,210.94
  5. Step 5: Solve for x
    x = 170,325,449,210.94/369,744.20
  6. Step 6: Final answer
    x = 460,657.53

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1.5x scale

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.