Home / 672,776.15-928,509.89-382,431.31

Finding the Fourth Proportional to 672,776.15, 928,509.89 and 382,431.31

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Solution

The fourth proportional to 672,776.15, 928,509.89 and 382,431.31 is: 527,800.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,776.15 : 928,509.89 = 382,431.31 : x
  2. Step 2: Convert to fraction form
    672,776.15/928,509.89 = 382,431.31/x
  3. Step 3: Cross multiply
    672,776.15x = 928,509.89 × 382,431.31
  4. Step 4: Simplify right side
    672,776.15x = 355,091,249,347.23
  5. Step 5: Solve for x
    x = 355,091,249,347.23/672,776.15
  6. Step 6: Final answer
    x = 527,800.00

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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.