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Finding the Fourth Proportional to 621,301.60, 932,643.60 and 384,911.20

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Solution

The fourth proportional to 621,301.60, 932,643.60 and 384,911.20 is: 577,795.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,301.60 : 932,643.60 = 384,911.20 : x
  2. Step 2: Convert to fraction form
    621,301.60/932,643.60 = 384,911.20/x
  3. Step 3: Cross multiply
    621,301.60x = 932,643.60 × 384,911.20
  4. Step 4: Simplify right side
    621,301.60x = 358,984,967,248.32
  5. Step 5: Solve for x
    x = 358,984,967,248.32/621,301.60
  6. Step 6: Final answer
    x = 577,795.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.