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Finding the Fourth Proportional to 611,438.52, 913,040.34 and 499,341.10

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Solution

The fourth proportional to 611,438.52, 913,040.34 and 499,341.10 is: 745,649.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,438.52 : 913,040.34 = 499,341.10 : x
  2. Step 2: Convert to fraction form
    611,438.52/913,040.34 = 499,341.10/x
  3. Step 3: Cross multiply
    611,438.52x = 913,040.34 × 499,341.10
  4. Step 4: Simplify right side
    611,438.52x = 455,918,567,719.97
  5. Step 5: Solve for x
    x = 455,918,567,719.97/611,438.52
  6. Step 6: Final answer
    x = 745,649.08

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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.