Home / 905,421.60-1,249,408.68-523,473

Finding the Fourth Proportional to 905,421.60, 1,249,408.68 and 523,473

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Solution

The fourth proportional to 905,421.60, 1,249,408.68 and 523,473 is: 722,350.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,421.60 : 1,249,408.68 = 523,473 : x
  2. Step 2: Convert to fraction form
    905,421.60/1,249,408.68 = 523,473/x
  3. Step 3: Cross multiply
    905,421.60x = 1,249,408.68 × 523,473
  4. Step 4: Simplify right side
    905,421.60x = 654,031,709,945.64
  5. Step 5: Solve for x
    x = 654,031,709,945.64/905,421.60
  6. Step 6: Final answer
    x = 722,350.46

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Double scale
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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.