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Finding the Fourth Proportional to 650,085.60, 975,128.40 and 531,890.40

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Solution

The fourth proportional to 650,085.60, 975,128.40 and 531,890.40 is: 797,835.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,085.60 : 975,128.40 = 531,890.40 : x
  2. Step 2: Convert to fraction form
    650,085.60/975,128.40 = 531,890.40/x
  3. Step 3: Cross multiply
    650,085.60x = 975,128.40 × 531,890.40
  4. Step 4: Simplify right side
    650,085.60x = 518,661,434,727.36
  5. Step 5: Solve for x
    x = 518,661,434,727.36/650,085.60
  6. Step 6: Final answer
    x = 797,835.60

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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.