Home / 530,272.16-731,790.95-288,570.30

Finding the Fourth Proportional to 530,272.16, 731,790.95 and 288,570.30

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Solution

The fourth proportional to 530,272.16, 731,790.95 and 288,570.30 is: 398,235.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,272.16 : 731,790.95 = 288,570.30 : x
  2. Step 2: Convert to fraction form
    530,272.16/731,790.95 = 288,570.30/x
  3. Step 3: Cross multiply
    530,272.16x = 731,790.95 × 288,570.30
  4. Step 4: Simplify right side
    530,272.16x = 211,173,132,535.93
  5. Step 5: Solve for x
    x = 211,173,132,535.93/530,272.16
  6. Step 6: Final answer
    x = 398,235.38

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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.