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Finding the Fourth Proportional to 575,783.08, 794,581.86 and 321,127.72

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Solution

The fourth proportional to 575,783.08, 794,581.86 and 321,127.72 is: 443,156.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,783.08 : 794,581.86 = 321,127.72 : x
  2. Step 2: Convert to fraction form
    575,783.08/794,581.86 = 321,127.72/x
  3. Step 3: Cross multiply
    575,783.08x = 794,581.86 × 321,127.72
  4. Step 4: Simplify right side
    575,783.08x = 255,162,261,055.16
  5. Step 5: Solve for x
    x = 255,162,261,055.16/575,783.08
  6. Step 6: Final answer
    x = 443,156.93

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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.