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Finding the Fourth Proportional to 572,330.40, 858,884.40 and 319,610.40

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Solution

The fourth proportional to 572,330.40, 858,884.40 and 319,610.40 is: 479,632.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,330.40 : 858,884.40 = 319,610.40 : x
  2. Step 2: Convert to fraction form
    572,330.40/858,884.40 = 319,610.40/x
  3. Step 3: Cross multiply
    572,330.40x = 858,884.40 × 319,610.40
  4. Step 4: Simplify right side
    572,330.40x = 274,508,386,637.76
  5. Step 5: Solve for x
    x = 274,508,386,637.76/572,330.40
  6. Step 6: Final answer
    x = 479,632.72

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1.5x scale

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.