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Finding the Fourth Proportional to 1,955,055.90, 2,928,766.04 and 928,925.90

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Solution

The fourth proportional to 1,955,055.90, 2,928,766.04 and 928,925.90 is: 1,391,574.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,955,055.90 : 2,928,766.04 = 928,925.90 : x
  2. Step 2: Convert to fraction form
    1,955,055.90/2,928,766.04 = 928,925.90/x
  3. Step 3: Cross multiply
    1,955,055.90x = 2,928,766.04 × 928,925.90
  4. Step 4: Simplify right side
    1,955,055.90x = 2,720,606,610,307.98
  5. Step 5: Solve for x
    x = 2,720,606,610,307.98/1,955,055.90
  6. Step 6: Final answer
    x = 1,391,574.84

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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.