Home / 779,395.56-1,075,544.10-439,895.40

Finding the Fourth Proportional to 779,395.56, 1,075,544.10 and 439,895.40

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Solution

The fourth proportional to 779,395.56, 1,075,544.10 and 439,895.40 is: 607,043.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,395.56 : 1,075,544.10 = 439,895.40 : x
  2. Step 2: Convert to fraction form
    779,395.56/1,075,544.10 = 439,895.40/x
  3. Step 3: Cross multiply
    779,395.56x = 1,075,544.10 × 439,895.40
  4. Step 4: Simplify right side
    779,395.56x = 473,126,902,087.14
  5. Step 5: Solve for x
    x = 473,126,902,087.14/779,395.56
  6. Step 6: Final answer
    x = 607,043.36

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Double scale
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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.