Home / 530,665.40-732,308.76-288,943.58

Finding the Fourth Proportional to 530,665.40, 732,308.76 and 288,943.58

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Solution

The fourth proportional to 530,665.40, 732,308.76 and 288,943.58 is: 398,736.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,665.40 : 732,308.76 = 288,943.58 : x
  2. Step 2: Convert to fraction form
    530,665.40/732,308.76 = 288,943.58/x
  3. Step 3: Cross multiply
    530,665.40x = 732,308.76 × 288,943.58
  4. Step 4: Simplify right side
    530,665.40x = 211,595,914,779.76
  5. Step 5: Solve for x
    x = 211,595,914,779.76/530,665.40
  6. Step 6: Final answer
    x = 398,736.97

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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.