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Finding the Fourth Proportional to 670,971,005.84, 925,931,159.10 and 369,550,529.29

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Solution

The fourth proportional to 670,971,005.84, 925,931,159.10 and 369,550,529.29 is: 509,974,867.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,971,005.84 : 925,931,159.10 = 369,550,529.29 : x
  2. Step 2: Convert to fraction form
    670,971,005.84/925,931,159.10 = 369,550,529.29/x
  3. Step 3: Cross multiply
    670,971,005.84x = 925,931,159.10 × 369,550,529.29
  4. Step 4: Simplify right side
    670,971,005.84x = 342,178,349,931,508,224
  5. Step 5: Solve for x
    x = 342,178,349,931,508,224/670,971,005.84
  6. Step 6: Final answer
    x = 509,974,867.70

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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.