Home / 571,430.13-857,312.47-255,816.69

Finding the Fourth Proportional to 571,430.13, 857,312.47 and 255,816.69

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Solution

The fourth proportional to 571,430.13, 857,312.47 and 255,816.69 is: 383,799.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,430.13 : 857,312.47 = 255,816.69 : x
  2. Step 2: Convert to fraction form
    571,430.13/857,312.47 = 255,816.69/x
  3. Step 3: Cross multiply
    571,430.13x = 857,312.47 × 255,816.69
  4. Step 4: Simplify right side
    571,430.13x = 219,314,838,371.12
  5. Step 5: Solve for x
    x = 219,314,838,371.12/571,430.13
  6. Step 6: Final answer
    x = 383,799.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.