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Finding the Fourth Proportional to 767,762.97, 1,059,509.92 and 423,620.32

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Solution

The fourth proportional to 767,762.97, 1,059,509.92 and 423,620.32 is: 584,594.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,762.97 : 1,059,509.92 = 423,620.32 : x
  2. Step 2: Convert to fraction form
    767,762.97/1,059,509.92 = 423,620.32/x
  3. Step 3: Cross multiply
    767,762.97x = 1,059,509.92 × 423,620.32
  4. Step 4: Simplify right side
    767,762.97x = 448,829,930,294.52
  5. Step 5: Solve for x
    x = 448,829,930,294.52/767,762.97
  6. Step 6: Final answer
    x = 584,594.40

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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.