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Finding the Fourth Proportional to 556,189.83, 767,581.29 and 314,474.76

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Solution

The fourth proportional to 556,189.83, 767,581.29 and 314,474.76 is: 433,997.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,189.83 : 767,581.29 = 314,474.76 : x
  2. Step 2: Convert to fraction form
    556,189.83/767,581.29 = 314,474.76/x
  3. Step 3: Cross multiply
    556,189.83x = 767,581.29 × 314,474.76
  4. Step 4: Simplify right side
    556,189.83x = 241,384,941,953.24
  5. Step 5: Solve for x
    x = 241,384,941,953.24/556,189.83
  6. Step 6: Final answer
    x = 433,997.40

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Double scale
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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.