Home / 623,622.48-860,606.88-378,536.40

Finding the Fourth Proportional to 623,622.48, 860,606.88 and 378,536.40

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Solution

The fourth proportional to 623,622.48, 860,606.88 and 378,536.40 is: 522,385.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,622.48 : 860,606.88 = 378,536.40 : x
  2. Step 2: Convert to fraction form
    623,622.48/860,606.88 = 378,536.40/x
  3. Step 3: Cross multiply
    623,622.48x = 860,606.88 × 378,536.40
  4. Step 4: Simplify right side
    623,622.48x = 325,771,030,170.43
  5. Step 5: Solve for x
    x = 325,771,030,170.43/623,622.48
  6. Step 6: Final answer
    x = 522,385.00

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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.