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Finding the Fourth Proportional to 874,598.98, 1,312,080 and 369,164.20

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Solution

The fourth proportional to 874,598.98, 1,312,080 and 369,164.20 is: 553,822.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,598.98 : 1,312,080 = 369,164.20 : x
  2. Step 2: Convert to fraction form
    874,598.98/1,312,080 = 369,164.20/x
  3. Step 3: Cross multiply
    874,598.98x = 1,312,080 × 369,164.20
  4. Step 4: Simplify right side
    874,598.98x = 484,372,963,536
  5. Step 5: Solve for x
    x = 484,372,963,536/874,598.98
  6. Step 6: Final answer
    x = 553,822.92

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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.