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Finding the Fourth Proportional to 528,381.84, 792,369.76 and 191,322.76

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Solution

The fourth proportional to 528,381.84, 792,369.76 and 191,322.76 is: 286,910.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,381.84 : 792,369.76 = 191,322.76 : x
  2. Step 2: Convert to fraction form
    528,381.84/792,369.76 = 191,322.76/x
  3. Step 3: Cross multiply
    528,381.84x = 792,369.76 × 191,322.76
  4. Step 4: Simplify right side
    528,381.84x = 151,598,369,423.74
  5. Step 5: Solve for x
    x = 151,598,369,423.74/528,381.84
  6. Step 6: Final answer
    x = 286,910.64

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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.