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Finding the Fourth Proportional to 705,812.58, 974,019.24 and 383,523.66

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Solution

The fourth proportional to 705,812.58, 974,019.24 and 383,523.66 is: 529,261.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,812.58 : 974,019.24 = 383,523.66 : x
  2. Step 2: Convert to fraction form
    705,812.58/974,019.24 = 383,523.66/x
  3. Step 3: Cross multiply
    705,812.58x = 974,019.24 × 383,523.66
  4. Step 4: Simplify right side
    705,812.58x = 373,559,423,835.22
  5. Step 5: Solve for x
    x = 373,559,423,835.22/705,812.58
  6. Step 6: Final answer
    x = 529,261.50

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Double scale
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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.