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Finding the Fourth Proportional to 423,341.66, 635,123.16 and 245,677.88

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Solution

The fourth proportional to 423,341.66, 635,123.16 and 245,677.88 is: 368,581.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,341.66 : 635,123.16 = 245,677.88 : x
  2. Step 2: Convert to fraction form
    423,341.66/635,123.16 = 245,677.88/x
  3. Step 3: Cross multiply
    423,341.66x = 635,123.16 × 245,677.88
  4. Step 4: Simplify right side
    423,341.66x = 156,035,713,075.51
  5. Step 5: Solve for x
    x = 156,035,713,075.51/423,341.66
  6. Step 6: Final answer
    x = 368,581.05

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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.