Home / 719,130.82-991,981.50-460,915.78

Finding the Fourth Proportional to 719,130.82, 991,981.50 and 460,915.78

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Solution

The fourth proportional to 719,130.82, 991,981.50 and 460,915.78 is: 635,795.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,130.82 : 991,981.50 = 460,915.78 : x
  2. Step 2: Convert to fraction form
    719,130.82/991,981.50 = 460,915.78/x
  3. Step 3: Cross multiply
    719,130.82x = 991,981.50 × 460,915.78
  4. Step 4: Simplify right side
    719,130.82x = 457,219,926,818.07
  5. Step 5: Solve for x
    x = 457,219,926,818.07/719,130.82
  6. Step 6: Final answer
    x = 635,795.20

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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.