Home / 716,756.48-989,146.38-406,672.14

Finding the Fourth Proportional to 716,756.48, 989,146.38 and 406,672.14

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Solution

The fourth proportional to 716,756.48, 989,146.38 and 406,672.14 is: 561,220.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,756.48 : 989,146.38 = 406,672.14 : x
  2. Step 2: Convert to fraction form
    716,756.48/989,146.38 = 406,672.14/x
  3. Step 3: Cross multiply
    716,756.48x = 989,146.38 × 406,672.14
  4. Step 4: Simplify right side
    716,756.48x = 402,258,273,602.83
  5. Step 5: Solve for x
    x = 402,258,273,602.83/716,756.48
  6. Step 6: Final answer
    x = 561,220.28

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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.