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Finding the Fourth Proportional to 537,442.04, 806,301.57 and 385,814.90

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Solution

The fourth proportional to 537,442.04, 806,301.57 and 385,814.90 is: 578,821.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,442.04 : 806,301.57 = 385,814.90 : x
  2. Step 2: Convert to fraction form
    537,442.04/806,301.57 = 385,814.90/x
  3. Step 3: Cross multiply
    537,442.04x = 806,301.57 × 385,814.90
  4. Step 4: Simplify right side
    537,442.04x = 311,083,155,567.89
  5. Step 5: Solve for x
    x = 311,083,155,567.89/537,442.04
  6. Step 6: Final answer
    x = 578,821.78

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1.5x scale

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.