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Finding the Fourth Proportional to 665,030.46, 915,809.06 and 577,775.22

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Solution

The fourth proportional to 665,030.46, 915,809.06 and 577,775.22 is: 795,650.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,030.46 : 915,809.06 = 577,775.22 : x
  2. Step 2: Convert to fraction form
    665,030.46/915,809.06 = 577,775.22/x
  3. Step 3: Cross multiply
    665,030.46x = 915,809.06 × 577,775.22
  4. Step 4: Simplify right side
    665,030.46x = 529,131,781,119.49
  5. Step 5: Solve for x
    x = 529,131,781,119.49/665,030.46
  6. Step 6: Final answer
    x = 795,650.44

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Double scale
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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.