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Finding the Fourth Proportional to 368,430.80, 552,322.20 and 249,717.20

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Solution

The fourth proportional to 368,430.80, 552,322.20 and 249,717.20 is: 374,356.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,430.80 : 552,322.20 = 249,717.20 : x
  2. Step 2: Convert to fraction form
    368,430.80/552,322.20 = 249,717.20/x
  3. Step 3: Cross multiply
    368,430.80x = 552,322.20 × 249,717.20
  4. Step 4: Simplify right side
    368,430.80x = 137,924,353,281.84
  5. Step 5: Solve for x
    x = 137,924,353,281.84/368,430.80
  6. Step 6: Final answer
    x = 374,356.20

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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.