Home / 514,456.10-709,949.98-288,101.60

Finding the Fourth Proportional to 514,456.10, 709,949.98 and 288,101.60

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Solution

The fourth proportional to 514,456.10, 709,949.98 and 288,101.60 is: 397,580.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,456.10 : 709,949.98 = 288,101.60 : x
  2. Step 2: Convert to fraction form
    514,456.10/709,949.98 = 288,101.60/x
  3. Step 3: Cross multiply
    514,456.10x = 709,949.98 × 288,101.60
  4. Step 4: Simplify right side
    514,456.10x = 204,537,725,157.97
  5. Step 5: Solve for x
    x = 204,537,725,157.97/514,456.10
  6. Step 6: Final answer
    x = 397,580.52

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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.