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Finding the Fourth Proportional to 566,999.40, 849,332.70 and 389,706.60

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Solution

The fourth proportional to 566,999.40, 849,332.70 and 389,706.60 is: 583,758.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,999.40 : 849,332.70 = 389,706.60 : x
  2. Step 2: Convert to fraction form
    566,999.40/849,332.70 = 389,706.60/x
  3. Step 3: Cross multiply
    566,999.40x = 849,332.70 × 389,706.60
  4. Step 4: Simplify right side
    566,999.40x = 330,990,558,785.82
  5. Step 5: Solve for x
    x = 330,990,558,785.82/566,999.40
  6. Step 6: Final answer
    x = 583,758.22

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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.