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Finding the Fourth Proportional to 571,527.52, 788,752.58 and 316,928.32

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Solution

The fourth proportional to 571,527.52, 788,752.58 and 316,928.32 is: 437,385.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,527.52 : 788,752.58 = 316,928.32 : x
  2. Step 2: Convert to fraction form
    571,527.52/788,752.58 = 316,928.32/x
  3. Step 3: Cross multiply
    571,527.52x = 788,752.58 × 316,928.32
  4. Step 4: Simplify right side
    571,527.52x = 249,978,030,075.07
  5. Step 5: Solve for x
    x = 249,978,030,075.07/571,527.52
  6. Step 6: Final answer
    x = 437,385.81

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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.