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Finding the Fourth Proportional to 554,934.30, 832,401.45 and 397,470.30

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Solution

The fourth proportional to 554,934.30, 832,401.45 and 397,470.30 is: 596,205.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,934.30 : 832,401.45 = 397,470.30 : x
  2. Step 2: Convert to fraction form
    554,934.30/832,401.45 = 397,470.30/x
  3. Step 3: Cross multiply
    554,934.30x = 832,401.45 × 397,470.30
  4. Step 4: Simplify right side
    554,934.30x = 330,854,854,051.94
  5. Step 5: Solve for x
    x = 330,854,854,051.94/554,934.30
  6. Step 6: Final answer
    x = 596,205.45

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Half scale
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Double scale
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Similar ratio
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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.