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Finding the Fourth Proportional to 562,784.46, 776,636.66 and 304,655.58

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Solution

The fourth proportional to 562,784.46, 776,636.66 and 304,655.58 is: 420,421.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,784.46 : 776,636.66 = 304,655.58 : x
  2. Step 2: Convert to fraction form
    562,784.46/776,636.66 = 304,655.58/x
  3. Step 3: Cross multiply
    562,784.46x = 776,636.66 × 304,655.58
  4. Step 4: Simplify right side
    562,784.46x = 236,606,695,775.59
  5. Step 5: Solve for x
    x = 236,606,695,775.59/562,784.46
  6. Step 6: Final answer
    x = 420,421.52

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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.