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Finding the Fourth Proportional to 562,897.60, 776,799.08 and 308,248.84

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Solution

The fourth proportional to 562,897.60, 776,799.08 and 308,248.84 is: 425,383.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,897.60 : 776,799.08 = 308,248.84 : x
  2. Step 2: Convert to fraction form
    562,897.60/776,799.08 = 308,248.84/x
  3. Step 3: Cross multiply
    562,897.60x = 776,799.08 × 308,248.84
  4. Step 4: Simplify right side
    562,897.60x = 239,447,415,323.07
  5. Step 5: Solve for x
    x = 239,447,415,323.07/562,897.60
  6. Step 6: Final answer
    x = 425,383.61

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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.