Home / 530,417.40-731,999.88-326,477.76

Finding the Fourth Proportional to 530,417.40, 731,999.88 and 326,477.76

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Solution

The fourth proportional to 530,417.40, 731,999.88 and 326,477.76 is: 450,554.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,417.40 : 731,999.88 = 326,477.76 : x
  2. Step 2: Convert to fraction form
    530,417.40/731,999.88 = 326,477.76/x
  3. Step 3: Cross multiply
    530,417.40x = 731,999.88 × 326,477.76
  4. Step 4: Simplify right side
    530,417.40x = 238,981,681,142.67
  5. Step 5: Solve for x
    x = 238,981,681,142.67/530,417.40
  6. Step 6: Final answer
    x = 450,554.00

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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.