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Finding the Fourth Proportional to 610,609.39, 842,606.55 and 338,657.77

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Solution

The fourth proportional to 610,609.39, 842,606.55 and 338,657.77 is: 467,328.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,609.39 : 842,606.55 = 338,657.77 : x
  2. Step 2: Convert to fraction form
    610,609.39/842,606.55 = 338,657.77/x
  3. Step 3: Cross multiply
    610,609.39x = 842,606.55 × 338,657.77
  4. Step 4: Simplify right side
    610,609.39x = 285,355,255,210.39
  5. Step 5: Solve for x
    x = 285,355,255,210.39/610,609.39
  6. Step 6: Final answer
    x = 467,328.64

Related Problems

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Half scale
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Double scale
Find fourth proportional to 610,610.39, 842,607.93 and 338,658.77
Similar ratio
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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.