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Finding the Fourth Proportional to 354,281.45, 488,897.02 and 193,133.93

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Solution

The fourth proportional to 354,281.45, 488,897.02 and 193,133.93 is: 266,518.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,281.45 : 488,897.02 = 193,133.93 : x
  2. Step 2: Convert to fraction form
    354,281.45/488,897.02 = 193,133.93/x
  3. Step 3: Cross multiply
    354,281.45x = 488,897.02 × 193,133.93
  4. Step 4: Simplify right side
    354,281.45x = 94,422,602,837.89
  5. Step 5: Solve for x
    x = 94,422,602,837.89/354,281.45
  6. Step 6: Final answer
    x = 266,518.62

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1.5x scale

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.