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Finding the Fourth Proportional to 634,166.48, 947,767.65 and 463,747.25

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Solution

The fourth proportional to 634,166.48, 947,767.65 and 463,747.25 is: 693,074.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,166.48 : 947,767.65 = 463,747.25 : x
  2. Step 2: Convert to fraction form
    634,166.48/947,767.65 = 463,747.25/x
  3. Step 3: Cross multiply
    634,166.48x = 947,767.65 × 463,747.25
  4. Step 4: Simplify right side
    634,166.48x = 439,524,636,587.62
  5. Step 5: Solve for x
    x = 439,524,636,587.62/634,166.48
  6. Step 6: Final answer
    x = 693,074.54

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Half scale
Find fourth proportional to 1,268,332.95, 1,895,535.30 and 927,494.49
Double scale
Find fourth proportional to 634,167.48, 947,769.14 and 463,748.25
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.