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Finding the Fourth Proportional to 606,494.80, 909,742.20 and 576,970.30

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Solution

The fourth proportional to 606,494.80, 909,742.20 and 576,970.30 is: 865,455.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,494.80 : 909,742.20 = 576,970.30 : x
  2. Step 2: Convert to fraction form
    606,494.80/909,742.20 = 576,970.30/x
  3. Step 3: Cross multiply
    606,494.80x = 909,742.20 × 576,970.30
  4. Step 4: Simplify right side
    606,494.80x = 524,894,230,056.66
  5. Step 5: Solve for x
    x = 524,894,230,056.66/606,494.80
  6. Step 6: Final answer
    x = 865,455.45

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Double scale
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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.