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Finding the Fourth Proportional to 661,367.61, 912,683.54 and 367,014.39

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Solution

The fourth proportional to 661,367.61, 912,683.54 and 367,014.39 is: 506,477.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,367.61 : 912,683.54 = 367,014.39 : x
  2. Step 2: Convert to fraction form
    661,367.61/912,683.54 = 367,014.39/x
  3. Step 3: Cross multiply
    661,367.61x = 912,683.54 × 367,014.39
  4. Step 4: Simplify right side
    661,367.61x = 334,967,988,132.72
  5. Step 5: Solve for x
    x = 334,967,988,132.72/661,367.61
  6. Step 6: Final answer
    x = 506,477.76

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Half scale
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Double scale
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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.