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Finding the Fourth Proportional to 511,465.68, 767,170.80 and 156,479.64

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Solution

The fourth proportional to 511,465.68, 767,170.80 and 156,479.64 is: 234,710.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,465.68 : 767,170.80 = 156,479.64 : x
  2. Step 2: Convert to fraction form
    511,465.68/767,170.80 = 156,479.64/x
  3. Step 3: Cross multiply
    511,465.68x = 767,170.80 × 156,479.64
  4. Step 4: Simplify right side
    511,465.68x = 120,046,610,602.51
  5. Step 5: Solve for x
    x = 120,046,610,602.51/511,465.68
  6. Step 6: Final answer
    x = 234,710.98

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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.