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Finding the Fourth Proportional to 514,689.99, 710,300.51 and 285,242.50

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Solution

The fourth proportional to 514,689.99, 710,300.51 and 285,242.50 is: 393,650.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,689.99 : 710,300.51 = 285,242.50 : x
  2. Step 2: Convert to fraction form
    514,689.99/710,300.51 = 285,242.50/x
  3. Step 3: Cross multiply
    514,689.99x = 710,300.51 × 285,242.50
  4. Step 4: Simplify right side
    514,689.99x = 202,607,893,223.68
  5. Step 5: Solve for x
    x = 202,607,893,223.68/514,689.99
  6. Step 6: Final answer
    x = 393,650.35

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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.