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Finding the Fourth Proportional to 631,591.24, 939,263.84 and 611,657.16

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Solution

The fourth proportional to 631,591.24, 939,263.84 and 611,657.16 is: 909,619.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,591.24 : 939,263.84 = 611,657.16 : x
  2. Step 2: Convert to fraction form
    631,591.24/939,263.84 = 611,657.16/x
  3. Step 3: Cross multiply
    631,591.24x = 939,263.84 × 611,657.16
  4. Step 4: Simplify right side
    631,591.24x = 574,507,452,865.09
  5. Step 5: Solve for x
    x = 574,507,452,865.09/631,591.24
  6. Step 6: Final answer
    x = 909,619.10

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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.