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Finding the Fourth Proportional to 776,985.60, 1,034,054.40 and 776,985.60

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Solution

The fourth proportional to 776,985.60, 1,034,054.40 and 776,985.60 is: 1,034,054.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,985.60 : 1,034,054.40 = 776,985.60 : x
  2. Step 2: Convert to fraction form
    776,985.60/1,034,054.40 = 776,985.60/x
  3. Step 3: Cross multiply
    776,985.60x = 1,034,054.40 × 776,985.60
  4. Step 4: Simplify right side
    776,985.60x = 803,445,378,416.64
  5. Step 5: Solve for x
    x = 803,445,378,416.64/776,985.60
  6. Step 6: Final answer
    x = 1,034,054.40

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.