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Finding the Fourth Proportional to 611,341.10, 917,995.80 and 461,750.30

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Solution

The fourth proportional to 611,341.10, 917,995.80 and 461,750.30 is: 693,368.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,341.10 : 917,995.80 = 461,750.30 : x
  2. Step 2: Convert to fraction form
    611,341.10/917,995.80 = 461,750.30/x
  3. Step 3: Cross multiply
    611,341.10x = 917,995.80 × 461,750.30
  4. Step 4: Simplify right side
    611,341.10x = 423,884,836,048.74
  5. Step 5: Solve for x
    x = 423,884,836,048.74/611,341.10
  6. Step 6: Final answer
    x = 693,368.79

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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.