Home / 945,746,350.17-1,305,210,636.41-528,139,312.53

Finding the Fourth Proportional to 945,746,350.17, 1,305,210,636.41 and 528,139,312.53

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Solution

The fourth proportional to 945,746,350.17, 1,305,210,636.41 and 528,139,312.53 is: 728,877,302.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,746,350.17 : 1,305,210,636.41 = 528,139,312.53 : x
  2. Step 2: Convert to fraction form
    945,746,350.17/1,305,210,636.41 = 528,139,312.53/x
  3. Step 3: Cross multiply
    945,746,350.17x = 1,305,210,636.41 × 528,139,312.53
  4. Step 4: Simplify right side
    945,746,350.17x = 689,333,048,215,909,504
  5. Step 5: Solve for x
    x = 689,333,048,215,909,504/945,746,350.17
  6. Step 6: Final answer
    x = 728,877,302.14

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1.5x scale

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.