Home / 623,840.20-931,247.64-548,172.40

Finding the Fourth Proportional to 623,840.20, 931,247.64 and 548,172.40

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Solution

The fourth proportional to 623,840.20, 931,247.64 and 548,172.40 is: 818,293.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,840.20 : 931,247.64 = 548,172.40 : x
  2. Step 2: Convert to fraction form
    623,840.20/931,247.64 = 548,172.40/x
  3. Step 3: Cross multiply
    623,840.20x = 931,247.64 × 548,172.40
  4. Step 4: Simplify right side
    623,840.20x = 510,484,253,813.14
  5. Step 5: Solve for x
    x = 510,484,253,813.14/623,840.20
  6. Step 6: Final answer
    x = 818,293.30

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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.