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Finding the Fourth Proportional to 983,585.76, 1,357,335 and 553,871.04

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Solution

The fourth proportional to 983,585.76, 1,357,335 and 553,871.04 is: 764,334.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,585.76 : 1,357,335 = 553,871.04 : x
  2. Step 2: Convert to fraction form
    983,585.76/1,357,335 = 553,871.04/x
  3. Step 3: Cross multiply
    983,585.76x = 1,357,335 × 553,871.04
  4. Step 4: Simplify right side
    983,585.76x = 751,788,548,078.40
  5. Step 5: Solve for x
    x = 751,788,548,078.40/983,585.76
  6. Step 6: Final answer
    x = 764,334.52

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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.