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Finding the Fourth Proportional to 716,117.71, 988,254.48 and 410,220.84

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Solution

The fourth proportional to 716,117.71, 988,254.48 and 410,220.84 is: 566,111.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,117.71 : 988,254.48 = 410,220.84 : x
  2. Step 2: Convert to fraction form
    716,117.71/988,254.48 = 410,220.84/x
  3. Step 3: Cross multiply
    716,117.71x = 988,254.48 × 410,220.84
  4. Step 4: Simplify right side
    716,117.71x = 405,402,576,952.54
  5. Step 5: Solve for x
    x = 405,402,576,952.54/716,117.71
  6. Step 6: Final answer
    x = 566,111.65

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Half scale
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Double scale
Find fourth proportional to 716,118.71, 988,255.86 and 410,221.84
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.