Home / 860,177.40-1,289,828.70-505,300.20

Finding the Fourth Proportional to 860,177.40, 1,289,828.70 and 505,300.20

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Solution

The fourth proportional to 860,177.40, 1,289,828.70 and 505,300.20 is: 757,693.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,177.40 : 1,289,828.70 = 505,300.20 : x
  2. Step 2: Convert to fraction form
    860,177.40/1,289,828.70 = 505,300.20/x
  3. Step 3: Cross multiply
    860,177.40x = 1,289,828.70 × 505,300.20
  4. Step 4: Simplify right side
    860,177.40x = 651,750,700,075.74
  5. Step 5: Solve for x
    x = 651,750,700,075.74/860,177.40
  6. Step 6: Final answer
    x = 757,693.35

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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.