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Finding the Fourth Proportional to 545,856.60, 818,784.90 and 459,251.40

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Solution

The fourth proportional to 545,856.60, 818,784.90 and 459,251.40 is: 688,877.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,856.60 : 818,784.90 = 459,251.40 : x
  2. Step 2: Convert to fraction form
    545,856.60/818,784.90 = 459,251.40/x
  3. Step 3: Cross multiply
    545,856.60x = 818,784.90 × 459,251.40
  4. Step 4: Simplify right side
    545,856.60x = 376,028,111,623.86
  5. Step 5: Solve for x
    x = 376,028,111,623.86/545,856.60
  6. Step 6: Final answer
    x = 688,877.10

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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.