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Finding the Fourth Proportional to 638,054.84, 957,248.40 and 238,726.82

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Solution

The fourth proportional to 638,054.84, 957,248.40 and 238,726.82 is: 358,152.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,054.84 : 957,248.40 = 238,726.82 : x
  2. Step 2: Convert to fraction form
    638,054.84/957,248.40 = 238,726.82/x
  3. Step 3: Cross multiply
    638,054.84x = 957,248.40 × 238,726.82
  4. Step 4: Simplify right side
    638,054.84x = 228,520,866,482.09
  5. Step 5: Solve for x
    x = 228,520,866,482.09/638,054.84
  6. Step 6: Final answer
    x = 358,152.39

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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.