Home / 697,075.20-1,045,612.80-519,928.20

Finding the Fourth Proportional to 697,075.20, 1,045,612.80 and 519,928.20

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Solution

The fourth proportional to 697,075.20, 1,045,612.80 and 519,928.20 is: 779,892.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,075.20 : 1,045,612.80 = 519,928.20 : x
  2. Step 2: Convert to fraction form
    697,075.20/1,045,612.80 = 519,928.20/x
  3. Step 3: Cross multiply
    697,075.20x = 1,045,612.80 × 519,928.20
  4. Step 4: Simplify right side
    697,075.20x = 543,643,581,000.96
  5. Step 5: Solve for x
    x = 543,643,581,000.96/697,075.20
  6. Step 6: Final answer
    x = 779,892.30

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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.