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Finding the Fourth Proportional to 572,307.36, 859,303.68 and 320,082

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Solution

The fourth proportional to 572,307.36, 859,303.68 and 320,082 is: 480,594.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,307.36 : 859,303.68 = 320,082 : x
  2. Step 2: Convert to fraction form
    572,307.36/859,303.68 = 320,082/x
  3. Step 3: Cross multiply
    572,307.36x = 859,303.68 × 320,082
  4. Step 4: Simplify right side
    572,307.36x = 275,047,640,501.76
  5. Step 5: Solve for x
    x = 275,047,640,501.76/572,307.36
  6. Step 6: Final answer
    x = 480,594.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.