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Finding the Fourth Proportional to 569,788.68, 786,332.16 and 328,065.24

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Solution

The fourth proportional to 569,788.68, 786,332.16 and 328,065.24 is: 452,743.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,788.68 : 786,332.16 = 328,065.24 : x
  2. Step 2: Convert to fraction form
    569,788.68/786,332.16 = 328,065.24/x
  3. Step 3: Cross multiply
    569,788.68x = 786,332.16 × 328,065.24
  4. Step 4: Simplify right side
    569,788.68x = 257,968,248,790.12
  5. Step 5: Solve for x
    x = 257,968,248,790.12/569,788.68
  6. Step 6: Final answer
    x = 452,743.72

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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.