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Finding the Fourth Proportional to 866,897.40, 1,300,346.10 and 814,409.40

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Solution

The fourth proportional to 866,897.40, 1,300,346.10 and 814,409.40 is: 1,221,614.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,897.40 : 1,300,346.10 = 814,409.40 : x
  2. Step 2: Convert to fraction form
    866,897.40/1,300,346.10 = 814,409.40/x
  3. Step 3: Cross multiply
    866,897.40x = 1,300,346.10 × 814,409.40
  4. Step 4: Simplify right side
    866,897.40x = 1,059,014,087,093.34
  5. Step 5: Solve for x
    x = 1,059,014,087,093.34/866,897.40
  6. Step 6: Final answer
    x = 1,221,614.10

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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.