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Finding the Fourth Proportional to 556,335.28, 767,742.66 and 301,687.06

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Solution

The fourth proportional to 556,335.28, 767,742.66 and 301,687.06 is: 416,328.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,335.28 : 767,742.66 = 301,687.06 : x
  2. Step 2: Convert to fraction form
    556,335.28/767,742.66 = 301,687.06/x
  3. Step 3: Cross multiply
    556,335.28x = 767,742.66 × 301,687.06
  4. Step 4: Simplify right side
    556,335.28x = 231,618,025,931.98
  5. Step 5: Solve for x
    x = 231,618,025,931.98/556,335.28
  6. Step 6: Final answer
    x = 416,328.13

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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.