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Finding the Fourth Proportional to 557,346.32, 769,139.28 and 302,692.04

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Solution

The fourth proportional to 557,346.32, 769,139.28 and 302,692.04 is: 417,715.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,346.32 : 769,139.28 = 302,692.04 : x
  2. Step 2: Convert to fraction form
    557,346.32/769,139.28 = 302,692.04/x
  3. Step 3: Cross multiply
    557,346.32x = 769,139.28 × 302,692.04
  4. Step 4: Simplify right side
    557,346.32x = 232,812,337,707.33
  5. Step 5: Solve for x
    x = 232,812,337,707.33/557,346.32
  6. Step 6: Final answer
    x = 417,715.75

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Double scale
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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.