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Finding the Fourth Proportional to 573,085.70, 859,628.55 and 307,365.20

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Solution

The fourth proportional to 573,085.70, 859,628.55 and 307,365.20 is: 461,047.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,085.70 : 859,628.55 = 307,365.20 : x
  2. Step 2: Convert to fraction form
    573,085.70/859,628.55 = 307,365.20/x
  3. Step 3: Cross multiply
    573,085.70x = 859,628.55 × 307,365.20
  4. Step 4: Simplify right side
    573,085.70x = 264,219,901,196.46
  5. Step 5: Solve for x
    x = 264,219,901,196.46/573,085.70
  6. Step 6: Final answer
    x = 461,047.80

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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.