Home / 943,106.30-1,301,486.86-513,389.64

Finding the Fourth Proportional to 943,106.30, 1,301,486.86 and 513,389.64

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Solution

The fourth proportional to 943,106.30, 1,301,486.86 and 513,389.64 is: 708,477.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    943,106.30 : 1,301,486.86 = 513,389.64 : x
  2. Step 2: Convert to fraction form
    943,106.30/1,301,486.86 = 513,389.64/x
  3. Step 3: Cross multiply
    943,106.30x = 1,301,486.86 × 513,389.64
  4. Step 4: Simplify right side
    943,106.30x = 668,169,870,520.13
  5. Step 5: Solve for x
    x = 668,169,870,520.13/943,106.30
  6. Step 6: Final answer
    x = 708,477.79

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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.