Home / 779,977.98-1,075,328.73-619,364.70

Finding the Fourth Proportional to 779,977.98, 1,075,328.73 and 619,364.70

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Solution

The fourth proportional to 779,977.98, 1,075,328.73 and 619,364.70 is: 853,896.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,977.98 : 1,075,328.73 = 619,364.70 : x
  2. Step 2: Convert to fraction form
    779,977.98/1,075,328.73 = 619,364.70/x
  3. Step 3: Cross multiply
    779,977.98x = 1,075,328.73 × 619,364.70
  4. Step 4: Simplify right side
    779,977.98x = 666,020,656,257.83
  5. Step 5: Solve for x
    x = 666,020,656,257.83/779,977.98
  6. Step 6: Final answer
    x = 853,896.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.