Home / 931,276.76-1,285,268.46-517,854.76

Finding the Fourth Proportional to 931,276.76, 1,285,268.46 and 517,854.76

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Solution

The fourth proportional to 931,276.76, 1,285,268.46 and 517,854.76 is: 714,698.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,276.76 : 1,285,268.46 = 517,854.76 : x
  2. Step 2: Convert to fraction form
    931,276.76/1,285,268.46 = 517,854.76/x
  3. Step 3: Cross multiply
    931,276.76x = 1,285,268.46 × 517,854.76
  4. Step 4: Simplify right side
    931,276.76x = 665,582,389,888.87
  5. Step 5: Solve for x
    x = 665,582,389,888.87/931,276.76
  6. Step 6: Final answer
    x = 714,698.81

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.