Home / 877,612.78-1,211,097.18-495,631.36

Finding the Fourth Proportional to 877,612.78, 1,211,097.18 and 495,631.36

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Solution

The fourth proportional to 877,612.78, 1,211,097.18 and 495,631.36 is: 683,966.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,612.78 : 1,211,097.18 = 495,631.36 : x
  2. Step 2: Convert to fraction form
    877,612.78/1,211,097.18 = 495,631.36/x
  3. Step 3: Cross multiply
    877,612.78x = 1,211,097.18 × 495,631.36
  4. Step 4: Simplify right side
    877,612.78x = 600,257,742,415.57
  5. Step 5: Solve for x
    x = 600,257,742,415.57/877,612.78
  6. Step 6: Final answer
    x = 683,966.50

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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.