Home / 779,979.98-1,075,331.48-619,366.70

Finding the Fourth Proportional to 779,979.98, 1,075,331.48 and 619,366.70

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Solution

The fourth proportional to 779,979.98, 1,075,331.48 and 619,366.70 is: 853,899.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,979.98 : 1,075,331.48 = 619,366.70 : x
  2. Step 2: Convert to fraction form
    779,979.98/1,075,331.48 = 619,366.70/x
  3. Step 3: Cross multiply
    779,979.98x = 1,075,331.48 × 619,366.70
  4. Step 4: Simplify right side
    779,979.98x = 666,024,510,173.72
  5. Step 5: Solve for x
    x = 666,024,510,173.72/779,979.98
  6. Step 6: Final answer
    x = 853,899.49

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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.