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Finding the Fourth Proportional to 1,965,307.08, 2,947,962.08 and 545,364.52

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Solution

The fourth proportional to 1,965,307.08, 2,947,962.08 and 545,364.52 is: 818,047.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,965,307.08 : 2,947,962.08 = 545,364.52 : x
  2. Step 2: Convert to fraction form
    1,965,307.08/2,947,962.08 = 545,364.52/x
  3. Step 3: Cross multiply
    1,965,307.08x = 2,947,962.08 × 545,364.52
  4. Step 4: Simplify right side
    1,965,307.08x = 1,607,713,924,737.40
  5. Step 5: Solve for x
    x = 1,607,713,924,737.40/1,965,307.08
  6. Step 6: Final answer
    x = 818,047.19

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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.