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Finding the Fourth Proportional to 539,116.40, 808,528.80 and 160,036.40

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Solution

The fourth proportional to 539,116.40, 808,528.80 and 160,036.40 is: 240,011.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,116.40 : 808,528.80 = 160,036.40 : x
  2. Step 2: Convert to fraction form
    539,116.40/808,528.80 = 160,036.40/x
  3. Step 3: Cross multiply
    539,116.40x = 808,528.80 × 160,036.40
  4. Step 4: Simplify right side
    539,116.40x = 129,394,038,448.32
  5. Step 5: Solve for x
    x = 129,394,038,448.32/539,116.40
  6. Step 6: Final answer
    x = 240,011.32

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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.