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Finding the Fourth Proportional to 514,868.88, 710,483.22 and 285,423.96

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Solution

The fourth proportional to 514,868.88, 710,483.22 and 285,423.96 is: 393,865.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,868.88 : 710,483.22 = 285,423.96 : x
  2. Step 2: Convert to fraction form
    514,868.88/710,483.22 = 285,423.96/x
  3. Step 3: Cross multiply
    514,868.88x = 710,483.22 × 285,423.96
  4. Step 4: Simplify right side
    514,868.88x = 202,788,934,165.95
  5. Step 5: Solve for x
    x = 202,788,934,165.95/514,868.88
  6. Step 6: Final answer
    x = 393,865.20

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1.5x scale

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.