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Finding the Fourth Proportional to 454,292.52, 626,341.40 and 372,319

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Solution

The fourth proportional to 454,292.52, 626,341.40 and 372,319 is: 513,323.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,292.52 : 626,341.40 = 372,319 : x
  2. Step 2: Convert to fraction form
    454,292.52/626,341.40 = 372,319/x
  3. Step 3: Cross multiply
    454,292.52x = 626,341.40 × 372,319
  4. Step 4: Simplify right side
    454,292.52x = 233,198,803,706.60
  5. Step 5: Solve for x
    x = 233,198,803,706.60/454,292.52
  6. Step 6: Final answer
    x = 513,323.01

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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.