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Finding the Fourth Proportional to 804,587.30, 1,129,571.50 and 804,587.30

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Solution

The fourth proportional to 804,587.30, 1,129,571.50 and 804,587.30 is: 1,129,571.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,587.30 : 1,129,571.50 = 804,587.30 : x
  2. Step 2: Convert to fraction form
    804,587.30/1,129,571.50 = 804,587.30/x
  3. Step 3: Cross multiply
    804,587.30x = 1,129,571.50 × 804,587.30
  4. Step 4: Simplify right side
    804,587.30x = 908,838,883,341.95
  5. Step 5: Solve for x
    x = 908,838,883,341.95/804,587.30
  6. Step 6: Final answer
    x = 1,129,571.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.