Home / 928,011.04-1,280,745.12-520,182.16

Finding the Fourth Proportional to 928,011.04, 1,280,745.12 and 520,182.16

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Solution

The fourth proportional to 928,011.04, 1,280,745.12 and 520,182.16 is: 717,901.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,011.04 : 1,280,745.12 = 520,182.16 : x
  2. Step 2: Convert to fraction form
    928,011.04/1,280,745.12 = 520,182.16/x
  3. Step 3: Cross multiply
    928,011.04x = 1,280,745.12 × 520,182.16
  4. Step 4: Simplify right side
    928,011.04x = 666,220,762,931.06
  5. Step 5: Solve for x
    x = 666,220,762,931.06/928,011.04
  6. Step 6: Final answer
    x = 717,901.76

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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.