Home / 563,681.19-777,929.01-309,081.59

Finding the Fourth Proportional to 563,681.19, 777,929.01 and 309,081.59

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Solution

The fourth proportional to 563,681.19, 777,929.01 and 309,081.59 is: 426,559.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,681.19 : 777,929.01 = 309,081.59 : x
  2. Step 2: Convert to fraction form
    563,681.19/777,929.01 = 309,081.59/x
  3. Step 3: Cross multiply
    563,681.19x = 777,929.01 × 309,081.59
  4. Step 4: Simplify right side
    563,681.19x = 240,443,531,428.28
  5. Step 5: Solve for x
    x = 240,443,531,428.28/563,681.19
  6. Step 6: Final answer
    x = 426,559.44

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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.