Home / 786,319.20-1,177,729.20-646,351.20

Finding the Fourth Proportional to 786,319.20, 1,177,729.20 and 646,351.20

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Solution

The fourth proportional to 786,319.20, 1,177,729.20 and 646,351.20 is: 968,088.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,319.20 : 1,177,729.20 = 646,351.20 : x
  2. Step 2: Convert to fraction form
    786,319.20/1,177,729.20 = 646,351.20/x
  3. Step 3: Cross multiply
    786,319.20x = 1,177,729.20 × 646,351.20
  4. Step 4: Simplify right side
    786,319.20x = 761,226,681,695.04
  5. Step 5: Solve for x
    x = 761,226,681,695.04/786,319.20
  6. Step 6: Final answer
    x = 968,088.64

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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.