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Finding the Fourth Proportional to 457,859,291.60, 686,553,007.80 and 170,497,038.80

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Solution

The fourth proportional to 457,859,291.60, 686,553,007.80 and 170,497,038.80 is: 255,657,703.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,859,291.60 : 686,553,007.80 = 170,497,038.80 : x
  2. Step 2: Convert to fraction form
    457,859,291.60/686,553,007.80 = 170,497,038.80/x
  3. Step 3: Cross multiply
    457,859,291.60x = 686,553,007.80 × 170,497,038.80
  4. Step 4: Simplify right side
    457,859,291.60x = 117,055,254,809,133,296
  5. Step 5: Solve for x
    x = 117,055,254,809,133,296/457,859,291.60
  6. Step 6: Final answer
    x = 255,657,703.05

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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.