Home / 712,603.12-983,148.20-406,459.52

Finding the Fourth Proportional to 712,603.12, 983,148.20 and 406,459.52

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Solution

The fourth proportional to 712,603.12, 983,148.20 and 406,459.52 is: 560,774.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,603.12 : 983,148.20 = 406,459.52 : x
  2. Step 2: Convert to fraction form
    712,603.12/983,148.20 = 406,459.52/x
  3. Step 3: Cross multiply
    712,603.12x = 983,148.20 × 406,459.52
  4. Step 4: Simplify right side
    712,603.12x = 399,609,945,460.86
  5. Step 5: Solve for x
    x = 399,609,945,460.86/712,603.12
  6. Step 6: Final answer
    x = 560,774.90

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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.