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Finding the Fourth Proportional to 636,293.76, 954,434.88 and 193,061.76

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Solution

The fourth proportional to 636,293.76, 954,434.88 and 193,061.76 is: 289,590.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,293.76 : 954,434.88 = 193,061.76 : x
  2. Step 2: Convert to fraction form
    636,293.76/954,434.88 = 193,061.76/x
  3. Step 3: Cross multiply
    636,293.76x = 954,434.88 × 193,061.76
  4. Step 4: Simplify right side
    636,293.76x = 184,264,877,738.19
  5. Step 5: Solve for x
    x = 184,264,877,738.19/636,293.76
  6. Step 6: Final answer
    x = 289,590.89

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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.