Home / 912,316.32-1,258,959.78-530,313.03

Finding the Fourth Proportional to 912,316.32, 1,258,959.78 and 530,313.03

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Solution

The fourth proportional to 912,316.32, 1,258,959.78 and 530,313.03 is: 731,810.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,316.32 : 1,258,959.78 = 530,313.03 : x
  2. Step 2: Convert to fraction form
    912,316.32/1,258,959.78 = 530,313.03/x
  3. Step 3: Cross multiply
    912,316.32x = 1,258,959.78 × 530,313.03
  4. Step 4: Simplify right side
    912,316.32x = 667,642,775,579.93
  5. Step 5: Solve for x
    x = 667,642,775,579.93/912,316.32
  6. Step 6: Final answer
    x = 731,810.62

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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.