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Finding the Fourth Proportional to 514,349.22, 711,155.76 and 450,503.40

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Solution

The fourth proportional to 514,349.22, 711,155.76 and 450,503.40 is: 622,880.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,349.22 : 711,155.76 = 450,503.40 : x
  2. Step 2: Convert to fraction form
    514,349.22/711,155.76 = 450,503.40/x
  3. Step 3: Cross multiply
    514,349.22x = 711,155.76 × 450,503.40
  4. Step 4: Simplify right side
    514,349.22x = 320,378,087,809.58
  5. Step 5: Solve for x
    x = 320,378,087,809.58/514,349.22
  6. Step 6: Final answer
    x = 622,880.48

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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.