Home / 530,070.15-731,496.24-288,352.15

Finding the Fourth Proportional to 530,070.15, 731,496.24 and 288,352.15

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Solution

The fourth proportional to 530,070.15, 731,496.24 and 288,352.15 is: 397,925.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,070.15 : 731,496.24 = 288,352.15 : x
  2. Step 2: Convert to fraction form
    530,070.15/731,496.24 = 288,352.15/x
  3. Step 3: Cross multiply
    530,070.15x = 731,496.24 × 288,352.15
  4. Step 4: Simplify right side
    530,070.15x = 210,928,516,617.83
  5. Step 5: Solve for x
    x = 210,928,516,617.83/530,070.15
  6. Step 6: Final answer
    x = 397,925.66

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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.