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Finding the Fourth Proportional to 6,249,938.78, 9,364,193.46 and 4,196,750.78

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Solution

The fourth proportional to 6,249,938.78, 9,364,193.46 and 4,196,750.78 is: 6,287,931.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,249,938.78 : 9,364,193.46 = 4,196,750.78 : x
  2. Step 2: Convert to fraction form
    6,249,938.78/9,364,193.46 = 4,196,750.78/x
  3. Step 3: Cross multiply
    6,249,938.78x = 9,364,193.46 × 4,196,750.78
  4. Step 4: Simplify right side
    6,249,938.78x = 39,299,186,207,325.91
  5. Step 5: Solve for x
    x = 39,299,186,207,325.91/6,249,938.78
  6. Step 6: Final answer
    x = 6,287,931.38

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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.