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Finding the Fourth Proportional to 705,967.46, 974,242.63 and 383,677.57

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Solution

The fourth proportional to 705,967.46, 974,242.63 and 383,677.57 is: 529,479.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,967.46 : 974,242.63 = 383,677.57 : x
  2. Step 2: Convert to fraction form
    705,967.46/974,242.63 = 383,677.57/x
  3. Step 3: Cross multiply
    705,967.46x = 974,242.63 × 383,677.57
  4. Step 4: Simplify right side
    705,967.46x = 373,795,044,868.81
  5. Step 5: Solve for x
    x = 373,795,044,868.81/705,967.46
  6. Step 6: Final answer
    x = 529,479.14

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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.