Home / 913,498.56-1,260,630.60-505,628.76

Finding the Fourth Proportional to 913,498.56, 1,260,630.60 and 505,628.76

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Solution

The fourth proportional to 913,498.56, 1,260,630.60 and 505,628.76 is: 697,769.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,498.56 : 1,260,630.60 = 505,628.76 : x
  2. Step 2: Convert to fraction form
    913,498.56/1,260,630.60 = 505,628.76/x
  3. Step 3: Cross multiply
    913,498.56x = 1,260,630.60 × 505,628.76
  4. Step 4: Simplify right side
    913,498.56x = 637,411,087,096.06
  5. Step 5: Solve for x
    x = 637,411,087,096.06/913,498.56
  6. Step 6: Final answer
    x = 697,769.12

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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.