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Finding the Fourth Proportional to 867,973.60, 1,301,960.40 and 552,656.80

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Solution

The fourth proportional to 867,973.60, 1,301,960.40 and 552,656.80 is: 828,985.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,973.60 : 1,301,960.40 = 552,656.80 : x
  2. Step 2: Convert to fraction form
    867,973.60/1,301,960.40 = 552,656.80/x
  3. Step 3: Cross multiply
    867,973.60x = 1,301,960.40 × 552,656.80
  4. Step 4: Simplify right side
    867,973.60x = 719,537,268,390.72
  5. Step 5: Solve for x
    x = 719,537,268,390.72/867,973.60
  6. Step 6: Final answer
    x = 828,985.20

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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.