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Finding the Fourth Proportional to 557,473.40, 836,210.10 and 459,058.40

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Solution

The fourth proportional to 557,473.40, 836,210.10 and 459,058.40 is: 688,587.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,473.40 : 836,210.10 = 459,058.40 : x
  2. Step 2: Convert to fraction form
    557,473.40/836,210.10 = 459,058.40/x
  3. Step 3: Cross multiply
    557,473.40x = 836,210.10 × 459,058.40
  4. Step 4: Simplify right side
    557,473.40x = 383,869,270,569.84
  5. Step 5: Solve for x
    x = 383,869,270,569.84/557,473.40
  6. Step 6: Final answer
    x = 688,587.60

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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.