Home / 909,348.32-1,254,931.00-495,907.74

Finding the Fourth Proportional to 909,348.32, 1,254,931.00 and 495,907.74

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Solution

The fourth proportional to 909,348.32, 1,254,931.00 and 495,907.74 is: 684,369.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,348.32 : 1,254,931.00 = 495,907.74 : x
  2. Step 2: Convert to fraction form
    909,348.32/1,254,931.00 = 495,907.74/x
  3. Step 3: Cross multiply
    909,348.32x = 1,254,931.00 × 495,907.74
  4. Step 4: Simplify right side
    909,348.32x = 622,329,994,826.17
  5. Step 5: Solve for x
    x = 622,329,994,826.17/909,348.32
  6. Step 6: Final answer
    x = 684,369.21

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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.