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Finding the Fourth Proportional to 570,306.13, 786,830.28 and 328,582.69

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Solution

The fourth proportional to 570,306.13, 786,830.28 and 328,582.69 is: 453,333.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,306.13 : 786,830.28 = 328,582.69 : x
  2. Step 2: Convert to fraction form
    570,306.13/786,830.28 = 328,582.69/x
  3. Step 3: Cross multiply
    570,306.13x = 786,830.28 × 328,582.69
  4. Step 4: Simplify right side
    570,306.13x = 258,538,809,975.85
  5. Step 5: Solve for x
    x = 258,538,809,975.85/570,306.13
  6. Step 6: Final answer
    x = 453,333.39

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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.