Home / 391,140,576,077.40-586,710,864,116.10-328,378,456,859.40

Finding the Fourth Proportional to 391,140,576,077.40, 586,710,864,116.10 and 328,378,456,859.40

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Solution

The fourth proportional to 391,140,576,077.40, 586,710,864,116.10 and 328,378,456,859.40 is: 492,567,685,289.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,140,576,077.40 : 586,710,864,116.10 = 328,378,456,859.40 : x
  2. Step 2: Convert to fraction form
    391,140,576,077.40/586,710,864,116.10 = 328,378,456,859.40/x
  3. Step 3: Cross multiply
    391,140,576,077.40x = 586,710,864,116.10 × 328,378,456,859.40
  4. Step 4: Simplify right side
    391,140,576,077.40x = 192,663,208,181,090,060,599,296
  5. Step 5: Solve for x
    x = 192,663,208,181,090,060,599,296/391,140,576,077.40
  6. Step 6: Final answer
    x = 492,567,685,289.10

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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.