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Finding the Fourth Proportional to 671,543,804, 1,006,088,070 and 486,853,870.88

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Solution

The fourth proportional to 671,543,804, 1,006,088,070 and 486,853,870.88 is: 729,390,798.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,543,804 : 1,006,088,070 = 486,853,870.88 : x
  2. Step 2: Convert to fraction form
    671,543,804/1,006,088,070 = 486,853,870.88/x
  3. Step 3: Cross multiply
    671,543,804x = 1,006,088,070 × 486,853,870.88
  4. Step 4: Simplify right side
    671,543,804x = 489,817,871,325,688,384
  5. Step 5: Solve for x
    x = 489,817,871,325,688,384/671,543,804
  6. Step 6: Final answer
    x = 729,390,798.35

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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.