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Finding the Fourth Proportional to 402,064.76, 554,783.58 and 229,955.00

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Solution

The fourth proportional to 402,064.76, 554,783.58 and 229,955.00 is: 317,300.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,064.76 : 554,783.58 = 229,955.00 : x
  2. Step 2: Convert to fraction form
    402,064.76/554,783.58 = 229,955.00/x
  3. Step 3: Cross multiply
    402,064.76x = 554,783.58 × 229,955.00
  4. Step 4: Simplify right side
    402,064.76x = 127,575,258,485.64
  5. Step 5: Solve for x
    x = 127,575,258,485.64/402,064.76
  6. Step 6: Final answer
    x = 317,300.27

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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.