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Finding the Fourth Proportional to 590,509.80, 885,764.70 and 574,957.80

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Solution

The fourth proportional to 590,509.80, 885,764.70 and 574,957.80 is: 862,436.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,509.80 : 885,764.70 = 574,957.80 : x
  2. Step 2: Convert to fraction form
    590,509.80/885,764.70 = 574,957.80/x
  3. Step 3: Cross multiply
    590,509.80x = 885,764.70 × 574,957.80
  4. Step 4: Simplify right side
    590,509.80x = 509,277,323,229.66
  5. Step 5: Solve for x
    x = 509,277,323,229.66/590,509.80
  6. Step 6: Final answer
    x = 862,436.70

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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.