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Finding the Fourth Proportional to 604,999.20, 907,498.80 and 447,535.20

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Solution

The fourth proportional to 604,999.20, 907,498.80 and 447,535.20 is: 671,302.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,999.20 : 907,498.80 = 447,535.20 : x
  2. Step 2: Convert to fraction form
    604,999.20/907,498.80 = 447,535.20/x
  3. Step 3: Cross multiply
    604,999.20x = 907,498.80 × 447,535.20
  4. Step 4: Simplify right side
    604,999.20x = 406,137,656,957.76
  5. Step 5: Solve for x
    x = 406,137,656,957.76/604,999.20
  6. Step 6: Final answer
    x = 671,302.80

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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.