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Finding the Fourth Proportional to 478,075.71, 716,946.46 and 141,026.92

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Solution

The fourth proportional to 478,075.71, 716,946.46 and 141,026.92 is: 211,491.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,075.71 : 716,946.46 = 141,026.92 : x
  2. Step 2: Convert to fraction form
    478,075.71/716,946.46 = 141,026.92/x
  3. Step 3: Cross multiply
    478,075.71x = 716,946.46 × 141,026.92
  4. Step 4: Simplify right side
    478,075.71x = 101,108,748,913.77
  5. Step 5: Solve for x
    x = 101,108,748,913.77/478,075.71
  6. Step 6: Final answer
    x = 211,491.08

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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.