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Finding the Fourth Proportional to 556,200.36, 767,595.78 and 314,485.26

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Solution

The fourth proportional to 556,200.36, 767,595.78 and 314,485.26 is: 434,011.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,200.36 : 767,595.78 = 314,485.26 : x
  2. Step 2: Convert to fraction form
    556,200.36/767,595.78 = 314,485.26/x
  3. Step 3: Cross multiply
    556,200.36x = 767,595.78 × 314,485.26
  4. Step 4: Simplify right side
    556,200.36x = 241,397,558,448.20
  5. Step 5: Solve for x
    x = 241,397,558,448.20/556,200.36
  6. Step 6: Final answer
    x = 434,011.87

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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.