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Finding the Fourth Proportional to 557,528.40, 836,292.60 and 459,113.40

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Solution

The fourth proportional to 557,528.40, 836,292.60 and 459,113.40 is: 688,670.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,528.40 : 836,292.60 = 459,113.40 : x
  2. Step 2: Convert to fraction form
    557,528.40/836,292.60 = 459,113.40/x
  3. Step 3: Cross multiply
    557,528.40x = 836,292.60 × 459,113.40
  4. Step 4: Simplify right side
    557,528.40x = 383,953,138,980.84
  5. Step 5: Solve for x
    x = 383,953,138,980.84/557,528.40
  6. Step 6: Final answer
    x = 688,670.10

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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.