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Finding the Fourth Proportional to 472,555.98, 652,127.37 and 257,690.52

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Solution

The fourth proportional to 472,555.98, 652,127.37 and 257,690.52 is: 355,612.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,555.98 : 652,127.37 = 257,690.52 : x
  2. Step 2: Convert to fraction form
    472,555.98/652,127.37 = 257,690.52/x
  3. Step 3: Cross multiply
    472,555.98x = 652,127.37 × 257,690.52
  4. Step 4: Simplify right side
    472,555.98x = 168,047,041,081.53
  5. Step 5: Solve for x
    x = 168,047,041,081.53/472,555.98
  6. Step 6: Final answer
    x = 355,612.98

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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.