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Finding the Fourth Proportional to 566,217.60, 849,326.40 and 389,270.40

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Solution

The fourth proportional to 566,217.60, 849,326.40 and 389,270.40 is: 583,905.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,217.60 : 849,326.40 = 389,270.40 : x
  2. Step 2: Convert to fraction form
    566,217.60/849,326.40 = 389,270.40/x
  3. Step 3: Cross multiply
    566,217.60x = 849,326.40 × 389,270.40
  4. Step 4: Simplify right side
    566,217.60x = 330,617,627,458.56
  5. Step 5: Solve for x
    x = 330,617,627,458.56/566,217.60
  6. Step 6: Final answer
    x = 583,905.60

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Half scale
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Double scale
Find fourth proportional to 566,218.60, 849,327.90 and 389,271.40
Similar ratio
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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.