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Finding the Fourth Proportional to 397,547.60, 596,116.20 and 117,028.40

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Solution

The fourth proportional to 397,547.60, 596,116.20 and 117,028.40 is: 175,482.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,547.60 : 596,116.20 = 117,028.40 : x
  2. Step 2: Convert to fraction form
    397,547.60/596,116.20 = 117,028.40/x
  3. Step 3: Cross multiply
    397,547.60x = 596,116.20 × 117,028.40
  4. Step 4: Simplify right side
    397,547.60x = 69,762,525,100.08
  5. Step 5: Solve for x
    x = 69,762,525,100.08/397,547.60
  6. Step 6: Final answer
    x = 175,482.19

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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.