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Finding the Fourth Proportional to 4,953,478.76, 6,836,547.88 and 3,020,860.42

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Solution

The fourth proportional to 4,953,478.76, 6,836,547.88 and 3,020,860.42 is: 4,169,243.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,953,478.76 : 6,836,547.88 = 3,020,860.42 : x
  2. Step 2: Convert to fraction form
    4,953,478.76/6,836,547.88 = 3,020,860.42/x
  3. Step 3: Cross multiply
    4,953,478.76x = 6,836,547.88 × 3,020,860.42
  4. Step 4: Simplify right side
    4,953,478.76x = 20,652,256,908,274.86
  5. Step 5: Solve for x
    x = 20,652,256,908,274.86/4,953,478.76
  6. Step 6: Final answer
    x = 4,169,243.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.