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Finding the Fourth Proportional to 514,636.08, 710,225.16 and 285,218.46

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Solution

The fourth proportional to 514,636.08, 710,225.16 and 285,218.46 is: 393,616.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,636.08 : 710,225.16 = 285,218.46 : x
  2. Step 2: Convert to fraction form
    514,636.08/710,225.16 = 285,218.46/x
  3. Step 3: Cross multiply
    514,636.08x = 710,225.16 × 285,218.46
  4. Step 4: Simplify right side
    514,636.08x = 202,569,326,388.45
  5. Step 5: Solve for x
    x = 202,569,326,388.45/514,636.08
  6. Step 6: Final answer
    x = 393,616.64

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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.